cover
Contact Name
Sri Suhartini, PhD
Contact Email
-
Phone
+62341580106
Journal Mail Official
afssaae@ub.ac.id
Editorial Address
Jl. Veteran Malang 65145 Indonesia
Location
Kota malang,
Jawa timur
INDONESIA
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)
Published by Universitas Brawijaya
ISSN : -     EISSN : 26225921     DOI : https://doi.org/10.21776/ub.afssaae
The Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering is aimed to diseminate the results and the progress in research, science and technology relevant to the area of food sciences, agricultural engineering and agroindustrial engineering. The development of green food production, agricultural and agroindustrial practices to reduce the ecological footprint to the environment is also the key focus of the journal.
Articles 124 Documents
The effect of lesser yam tuber flour (Dioscorea esculenta) and cooking methods on meat analogue chemical and textural properties Widya Karina Wijono; Teti Estiasih
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 4, No 2 (2021)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2021.004.02.10

Abstract

The addition of carbohydrates on gluten meat analogue has the potency to improve texture, such as lesser yam flour. It can be processed by steaming and baking. This study aimed to determine, analyze, evaluate the effect of cooking methods (steaming and baking) and substitution of lesser yam tuber flour (0%, 5%, 10%, 15%) on the texture of meat analogue and chemical properties only for the best meat analogue. This study used Randomized Block Design, Nested Design of 3 replications with 2 factors, levels of lesser yam tuber flour nested in cooking methods. The texture of meat analogue was compared to beef texture. The results showed that the cooking method affected hardness and cohesiveness significantly. The substitution of lesser yam tuber flour significantly affected hardness, springiness, cohesiveness and chewability. The best steamed meat analogue was at 5% substitution level of lesser yam tuber flour, contain of 49.79% moisture content, 28.39% protein, 17.04% carbohydrates, 2.57% ash, 2.21% fat and red grayish color. The best baked meat analogue was at 0% substitution level of lesser yam tuber flour, contain of 48.64% moisture content, 29.87% protein, 16.89% carbohydrates, 2.60% ash, 2.00% fat and red grayish color. The steamed meat analogue was more similar to beef, than the baked meat analogue. This production of a meat analogue would be suitable as a simple household-scale meat substituent.
Effect of temperature and duration of thermal pasteurization on polyphenol oxidase (PPO) enzyme activity, total plate count (TPC), physicochemical and organoleptic properties of Cavendish banana fruit juice (Musa cavendishii) Bambang Dwi Argo; Cici Damayanti; Anik Wulandari; Umi Mianadhiroh
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 4, No 2 (2021)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2021.004.02.5

Abstract

This research aims to determine the effect of temperature and duration of thermal pasteurization process in Cavendish banana juice. Cavendish banana is an abundant cultivated banana that has not been used properly, which is a climacteric fruit that has increased ethylene production after harvesting. Cavendish bananas have great potential as fruit juice. Pasteurization was carried out at temperatures of 55, 60, 65, 70 and 75 ℃ for 5, 10, and 15 minutes. Pasteurization with higher temperature and time can increase the total dissolved sugar and viscosity as well as decrease the pH value and PPO enzyme activity. The reducing sugar content of Cavendish banana juice was determined using the DNSA method with the greatest value at 55 ℃ for 5 minutes, which is 9.53%. Meanwhile, the content of phenol and flavonoid was determined using the Krishnan and Sinija method. The highest value of phenol and flavonoid content at 60 ℃ for 5 minutes, was 0.1728 mg GAE/g and 0.1583 mg QE/g sample. Antioxidant activity was determined using the DPPH method and the greatest percentage of inhibition at 60 ℃ for 5 minutes, which is 61.60%.  Vitamin C levels were identified by the UV-Vis spectrophotometry method with the greatest value at 55 ℃ for 5 minutes, which is 1.1409  mg /100 g. The Total Plate Count (TPC) of Cavendish banana juice decreased after pasteurization with the smallest total number of bacteria  at 75 ℃ for 15 minutes, with a value of 3.2×101 CFU/ml. Pasteurization process at 75 ℃ for 15 minutes can reduce the activity of PPO enzyme as much as 97%. In the organoleptic test, preferred level of Cavendish banana juice to all attributes of the average hedonic scale with the category of the likes.
The valorization of neem leaves infused coconut oil at various concentrations for the production of natural liquid shampoo Rini Nurul Fauziyah; Asri Widyasanti
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 4, No 2 (2021)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2021.004.02.6

Abstract

The liquid shampoo is a product that is generally used to clean hair and scalp. The additional active ingredient used in the liquid shampoo is neem leaves which contain polyphenols that have antibacterial effects. Neem leaves extract was made by hot infusion method with coconut oil as a solvent. The purposes of this research were to find the best concentration of neem leaves infused oil for liquid shampoo material and compare the qualities of liquid shampoo with Indonesian National Standard (SNI) of Shampoo 06-2692-1992. The method of this research was a laboratory experiment with descriptive analysis. This research was conducted in five treatments. Concentration neem leaves infused oil for liquid shampoo materials were ratio between coconut oil and neem leaves in sample A = 720:0 (w/w); B = 720:22,5 (w/w); C = 720:30 (w/w); D = 720:45 (w/w); and E = 720:90 (w/w). The result showed that all of the shampoos met the SNI of Shampoo 06-2692-1992 according to organoleptic, moisture content, and pH. The best shampoo based on organoleptic observation was shampoo C (720:30 (w/w)) with a hedonic percentage of 40%, moisture content of 69.89%, pH 7.03, and specific gravity of 1.0223 g/g. The highest antibacterial activity against S. aureus was shampoo E (720:90 (w/w)) with an inhibition zone diameter was 9.5 mm. Shampoo with the highest antibacterial activity resulted from the highest addition of coconut oils infused Neem leaves. It proved that neem leaves were effective as an additive in making shampoo to boost its antimicrobial properties.
Effect of hydrogen peroxide treatment on the concentration of volatile compound in coriander seeds oil Rizka Wildani; Usman Ahmad; Mohamad Rafi; Slamet Ari Dwi Ratnanto
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 4, No 2 (2021)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2021.004.02.1

Abstract

Coriander seeds essential oil have shown some remarkable biological properties and health benefits. The coriander seeds used in Indonesia are imported and also treated with hydrogen peroxide before reaching consumers. Hydrogen peroxide is known to be a strong oxidizer, but so far, there has been no information that explains its effects on the essential oil composition and concentration in coriander seed. This study aims to determine the effect of using hydrogen peroxide and the drying method on the composition of essential oils in coriander seeds. Yield and volatile oil compounds were measured, and the results were compared between the hydrogen peroxide concentration (0,35 and 50% )  and drying method (mechanical drying (50 ℃) and room temperature drying). GC-MS analysis detected linalool as the most common volatile constituent in all treatments. The highest concentration of linalool compounds (70.16%) was found in seeds without hydrogen peroxide (0%) treatment combined with mechanical drying, followed by without hydrogen peroxide (0% H2O2) combined with room drying (23.74%), then by 35% hydrogen peroxide  combined with room drying (18.71%), 35% hydrogen peroxidecombined with mechanical drying (18.84%), 50% hydrogen peroxide  combined with room drying (22.18%) and by 50% hydrogen peroxide combined with mechanical drying (15.45%). Therefore, the yield was clearly affected only by hydrogen peroxide treatment where no hydrogen peroxide treatment gave the highest yield. The drying method did not have any significant effect on yield.
The influence of roselle-based wedang uwuh (Hibiscus sabdariffa L.) on SOD (superoxide dismutase) and MDA (malondialdehyde) of cigarette smoke-exposed rat Tri Dewanti Widyaningsih; Muhammad Fawzul Alif Nugroho
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 4, No 2 (2021)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2021.004.02.7

Abstract

Cigarette smoke is the leading cause of several respiratory diseases because it contains high free radical compounds. These free radical compounds can be neutralized with antioxidants obtained from natural ingredients such as roselle. Roselle contains various bioactive compounds and consumes in the form of infusion. Mixing roselle with various herbs as wedang uwuh can increase the antioxidant content. Wedang uwuh is a beverage consisting of various combinations of herbs such as sappan wood, cloves, and cinnamon. This study aims to analyze levels of MDA and SOD in rats exposed to cigarette smoke and given wedang uwuh. This research was conducted on 30 white male Wistar rats that divided into six groups- P0 (normal control), P1 (roselle-based wedang uwuh), P2 (commercial wedang uwuh), P3 (smoke control), P4 (smoke + roselle-based wedang uwuh), P5 (smoke + commercial wedang uwuh). The dose of wedang uwuh is 2.7 ml/kg BW, and the dose of exposure to cigarette smoke is one cigarette for 5 minutes for 30 days. The differences between each group were analyzed using the one way ANOVA test and HSD advanced test. Statistical results showed that giving roselle-based wedang uwuh (P4) significantly reduced MDA levels and increased SOD than the smoke control group (P3). Roselle-based wedang uwuh reduce the MDA levels and increase SOD better than commercial wedang uwuh.
Biotoilizer automatic system prototype : automatic fertilization system integrated with bio-toilet based on Internet of Things (IOT) Ira Erdiandini; Rizamel Rizamel; Angelic Kusuma Nagari; Ahmad Dzakiyuddin Muhaimin; Lusi Lusi
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 4, No 2 (2021)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2021.004.02.2

Abstract

Human urine is one of the primary wastes in urban areas, which has not been maximally processed and utilized until now. Human urine can be processed into biofertilizer with special processing procedures to minimize the negative impact of using urine as fertilizer and avoid odor, dirt, and contamination of pathogenic bacteria in the processing process. This prototype aims to design a Biotoilizer Automatic System with processing human urine into a biofertilizer and an automatic fertilization system. This system is equipped with a DC water pump, pH sensor, YL-69 sensor, ultrasonic sensor, real-time clock (RTC) NodeMCU microcontroller, and Arduino Uno. The method used in this research is an experimental method by designing technical designs and making prototypes of an Internet of Things (IoT) based automatic fertilization system that utilizes solar panels and is integrated with Bio toilets and designing software. The system's test results can process urine into a biofertilizer and fertilize automatically 95% based on regulated conditions and can be monitored with an application via a smartphone
Glucohealth: The potential of porang (Amorphophallus muelleri) acid hydrolysed glucomannan as an inhibitor of SARS-CoV-2 interaction with ACE2 Amira Hasnanuha Ulayya; Ahmad Zaki Mubarok; Widodo Widodo; Simon Bambang Widjanarko; Marlita Eklesia
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 4, No 2 (2021)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2021.004.02.8

Abstract

The novel SARS-CoV-2 that causing global pandemic COVID-19 known to enter the host cell using the hACE2 as cell receptor. SARS-CoV S1 protein cleaves the ACE2 receptor, then the S2 subunits facilitates the cell membrane fusion, the inhibition of S1-ACE2 interaction can help develop anti SARS-CoV-2 medication. Porang glucomannan is a polysaccharide known as immunomodulator but never reported as anti-virus by direct inhibition of viral entry. Glucohealth was developed to investigate its potential. Method: Glucohealth is a glucomannan hydrolysate (HGM) that made from porang (Amorphophallus muelleri). Hydrolysis was carried using HCl in different concentration (0.25N, 0.5N, 1N) then analyzed its inhibitor activity using ELISA kit. Result: Higher HCl concentration produced HGM with smaller average particle size and lower glucomannan content. However, ELISA studies showed that glucomannan, including its hydrolysates, have the potency to bind with S1 protein and inhibit the binding activity of S1-ACE2. Degraded glucomannan proven to have better bioactivity and able to interact with pathogen to inhibit its cell entry. This project should be a gateway for further biomedical study of glucomannan from Indonesia’s local tuber and new approach to produce more natural therapy against COVID-19.
Android Tips And Trick for dummy Rosari J
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 1, No 2 (2018)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Android is a highly strong and innovative mobile operating system that frequently outperforms Apple's iOS in terms of support for new technology. The list goes on and on: 5G, NFC payment, bespoke keyboards, and so on. However, all of that cutting-edge capabilities results in a complex, huge operating system. The UI appears basic enough for casual users—those who just want to text, call, and use their apps—but there are a number of power-user settings and capabilities hidden a layer or two down in the interface. All you have to do is know where to look.We want you to be able to master Google's mobile operating system, and our list of tips and shortcuts can assist you in doing so. These are just a few of the ways you may use Google's OS; there's a long list of things to explore, and you'll undoubtedly discover more. Also, be sure to check out our roundup of the top Android apps, and feel free to leave a comment at the bottom of the page. We may include them in further updates to this storey!1. Remove any apps you don't use. The majority of Android phones come with a large number of preinstalled apps. Many will be appreciated by almost everyone—maps, email, browser, and so on—but there will surely be some that you do not want or want. You don't need a podcast app if you don't listen to podcasts. Furthermore, phone manufacturers frequently add a slew of their own apps that you may never use. Simply press and hold an app's icon for a few seconds, then select the I entry to get to the app's detail page, where you can uninstall it. Unfortunately, certain stock apps are impossible to remove. If you exclusively use Firefox or Edge, for example, you won't be able to delete Google's Chrome browser. You can at the very least select Disable for those apps, which will hide them from the UI and free up system resources.2. Take advantage of digital well-being features Staying up all night messaging and doomscrolling isn't the healthiest thing you can do. The Bedtime mode in Android 11 is part of the Digital Wellbeing feature. It not only silences your phone at a predetermined period, but it also turns the screen black and white in case you need to glance at it after hours. If you need extra time before retiring, select the Pause option in the dropdown menu. If you want more sleep advice, check out our article on how technology can help (or hurt) your sleep. Focus mode, which silences annoying app notifications, is another recommended Wellbeing feature. When you place your phone down with the screen facing down, some phones, like current Pixels and Motorolas, go into Do Not Disturb mode, which is a quick and easy way to get rid of distractions. Finally, when it's time to unwind, Work Profile hides all those productivity apps.3. In Windows, set up your phone app.Android and the Windows 10 Your Phone app I believe that the majority of individuals who use Mac desktops or laptops also use an iPhone, which has excellent interaction with macOS. However, with the Your Phone desktop software for Windows 10, Android users can have just as much—if not more—consistency with their desktop computer. It's easiest to begin the setup process from your computer. Go to the Phone section of the Settings app, select Add a Phone, and you're ready to go. You'll be able to make phone calls, send texts, and see and use photographs from your phone on your PC in real time. With the Link to Windows option, recent Samsung devices and the Surface Duo phone get even more capabilities, including the ability to run numerous Android apps on the desktop under the Your Phone app. You can get Android SMS on the web if you don't have Windows—another feature that Apple's mobile OS doesn't have. You may also use an emulator to run Android apps on Windows or macOS, although this is not as handy as using Windows 10's Your Phone.4. Change the Quick Settings One thing I don't like about Android is that it takes two swipes to reveal more than one row of Quick Settings, and even then, there are two pages of them. In the first swipe-down row, check sure the settings you use the most are there. Simply select the pencil symbol to add essential features such as Focus mode and Dark mode switches.5. Use the Web to Install Apps One of the best features of Android over iOS, in my opinion, is that you don't have to hold your phone in your hand to install an app. You can remotely install any app or game by going to the Google Play store in your web browser, as long as you're signed in to the same Google account as the phone. When you go to install, you'll get a list of your Android devices if you have more than one. It's a terrific time saver if you find an app on your computer and don't want to fiddle with your phone to get it on your phone.6. Download Apps from Other Places One of Android's standout characteristics is that, unlike iOS, you're not limited to using a single app store. The majority of customers will be able to locate any software they desire on Google's Play store, which comes with some useful security features. If you require anything not found there, nothing prevents you from visiting Amazon's app shop, your phone manufacturer's app store, or even downloading and installing the software as an APK (the extension for an Android Application Package file). One thing to keep in mind if you go this route: make sure you download the programme from a reputable source, as third-party app stores are the most common source of Android virus. First, do some research. Also, just in case, switch off the source's Install Unknown Apps feature after you've installed the app you want. The mega-popular game Fortnite is an example of why you would want to sideload (install outside of the official app store) an app. Android users can get the APK from the game developer's website, but iPhone users who wish to install the game for the first time are out of luck. In PCMag's article on how to play Fortnite on Android, you can learn more about the procedure.7. Download and install a launcher app. This is one form of personalization that iPhone owners aren't aware of: you can modify your phone's default start screen by downloading a third-party launcher app from the Play Store. Action Launcher, Apex, the brilliantly called Lawn Chair, Lightning, the Microsoft Launcher, Nova, Niagara, and Smart Launcher are a few notable launchers.Microsoft's Android Launcher Including the iOS 14 launcher, you can even make your Android look like an iPhone, with Siri shortcuts and an App Store icon in place of the Play icon. Do you want to relive the glory days of Windows Phone? There are other launchers that mimic the look and feel of that OS.8. Make Message Notifications Your OwnOptional notifications in Android 11 You can customise your message notifications in Android 11 to make certain contacts stand out more and keep conversations together. You can now have messages appear as bubbles on top of any other active programmes. Simply enable them in Settings and specify the priority of the contact. There's additional setting for Bubbles within a notification, with three options: All Conversations Can Bubble, Selected Conversations Can Bubble, and Nothing Can Bubble.9. Customize Your Home by Adding WidgetsAdd Widgets and Personalize Your Home With iOS 14 comes the option to add widgets to the home screen. For a long time, Android users have been able to accomplish this, but not everyone knows how. Simply long-press on the home screen, select Widgets, and then select from the list of options provided by any apps installed on their phones. Long-pressing on the Home screen also provides you more customization options, such as eliminating the Google feed page from the left side of the screen or disabling screen rotation for the Home screen—which we would never do because it's wonderful to view your home screen in landscape mode.10. Boost StorageAndroid phone with microSD slot One of the biggest advantages of Android over iPhones is that some versions allow you to expand your storage capacity using a microSD card. This not only expands the amount of media and apps you can store on your phone, but it also allows you to transmit vast amounts of data between your phone and other devices. Another advantage is that you can browse the data on some Android phones by plugging them into an external USB storage drive. You may easily plug in a USB flash memory drive with a Type-C connection if your phone has a USB-C port.Antivirus software should be installed. Because Android is significantly more open than iOS—that is, it is more similar to Windows than macOS—it is also far more vulnerable to malware attacks. Although Google has a number of robust security features built in, we recommend that you use an antivirus app on Android. Bitdefender Total Security, Kaspersky Security Cloud, Norton 360 Deluxe, and McAfee AntiVirus Plus are four PCMag Editors' Choice solutions, according to security expert Neil Rubenking. The majority of these also apply to your desktop computers. They make sure you're not installing malicious programmes and run malware scans on a regular basis. They also prevent thieves from gaining access to your phone by simply replacing the SIM card. Some feature VPN protection as well. 12. To open the camera, double-tap the power button. Unlike the iPhone, which has a camera icon on the lock screen, most Android phones allow you to turn on the camera by double tapping the power button. It's critical to have quick camera access to capture such fleeting moments. To focus and take the shot, you can also utilise the volume keys. To record a video, press and hold either button for a long time.13. Make Use Of Screen PinsAndroid's Screen Pinning If you need to pass your phone to someone else and don't want them snooping about in other apps, pin the screen, according to our pals at ExtremeTech.com. You can enable this in the Security menu if it isn't enabled by default. To block them from switching apps, tap the app icon on any programme in the multitasking interface and select "Pin." Switching apps can be secured by needing your phone's PIN. In app switching view, the app icon also allows you to split the screen, pause the app's notifications, and examine its information.14. Establish Guest Access You can give someone else a little more access than what screen-pinning allows. To give someone access to your phone but not to your apps, data, or settings, or to send text messages, go to Settings > System > Advanced > Multiple Users and turn it on. You can enable the Add Users from Lock Screen slider if you want. To access Quick Settings, swipe down twice from the top of your phone. Select Add Guest from your user icon in the lower right corner. The phone takes a few moments to transition to the mode, which disables personal accounts (such as email) but allows you to use the phone, maps, and the internet. You won't have to worry about a guest publishing a Facebook post or tweet for your account because only standard Android apps will appear.15. Keep track of what you do on your computer screen.Android 11 allows you to record your screen. With Android 11, Google included built-in screen-recording functionality. Previously, only Samsung, LG, and OnePlus phones could do so, but now any phone running Android 11 can. It's easy to use: Simply pull down the top shade and select Screen Record > Start Recording from the menu. You can choose whether or not to show touch points and capture sounds. Pull the shade down again and hit the big red bar to stop recording. In our tests, it worked flawlessly, producing a regular MP4 file in the photo gallery.16. Take advantage of developer optionsAndroid Developer Options This one comes from Ben Moore of PCMag. To enable this, go to the About Phone section of the Settings app, scroll down to the Build number, and tap it seven times. Then go to System > Advanced > Developer Options under Settings > System > Advanced > Developer Options. You can reveal screen touches, adjust Bluetooth device options, and set USB connection preferences, as well as a slew of other developer-only options. This is absolutely not for the technophobe, but rather for the hardcore tinker.17. Enable Find My Device.Android's "Find My Device" feature Both mobile OSes contain tools that assist you locate your phone on a map if you misplace it or it is stolen. Not only that, but these Find My services also allow you to disable, wipe, and play a sound on the phone. Apple's mobile operating system goes a step further by allowing you to display your phone number or another message on the screen of a misplaced device, something Google has yet to do.18. Make use of the Battery Saver Mode.Android has a battery saver mode. The Android operating system gives you a lot more control over battery-saving choices than the iPhone. You may use the Adaptive Battery feature, which extends battery life based on your usage patterns, as well as enable Battery Saver mode and have it switch off automatically when the phone is charged. You may also create a timetable for Battery Saver mode to be activated based on your usage or when your battery reaches a certain percentage of charge.19. Use Your Android Phone to Control Your Smart HomeYour Android Phone Can Control Your Smart Home Android version 11 made it easier to control smart home devices. When you hold down the power button for a long time, a screen emerges with large buttons for controlling your light bulbs and other gadgets. To make this work, you'll need to add the devices to the Google Home app and, if desired, establish a room for them.20. Make Regular Updates Our test Pixel's security settings page told us that a security update was available while we were working on this report. You should, without a doubt, install these as soon as feasible. Android updates are easier and faster than ever, and you never know what new features you'll get. Rest assured that we'll keep adding more hacks and shortcuts to this article as we discover them.
The effect of ZnO (zinc oxide) and glycerol concentrations on the mechanical properties of bioplastics made from Canna tuber (Canna edulis) starch Tanalyna Hasna; Cinta Ayu Lestari; Widya Dwi Rukmi Putri; Vivien Fathuroya
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 5, No 1 (2022)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2022.005.01.2

Abstract

The problem of plastic waste in Indonesia is increasingly worrying due to its long degradation duration. Bioplastics made from starch are easily degradable in nature and have a lower contribution to environmental pollution. This study aimed to determine the effect of ZnO and glycerol additions on the thickness, tensile strength, elongation, Young’s Modulus, water absorption, and biodegradation of bioplastics. The results indicate that adding ZnO and glycerol has significant effects on thickness, tensile strength, elongation, Young’s Modulus, water absorption, and biodegradation. A high concentration of ZnO and glycerol was parallel to an increase in the thickness of bioplastic. A high ZnO concentration and low glycerol concentration increases the tensile strength and Young’s Modulus, but decreases the water absorption. Glycerol at high concentration and ZnO at low concentration increases the elongation. The addition of ZnO in a small amount positively affects the biodegradation of bioplastics. 
Combination of FOBIO biopesticide and Brassica rapa L. as remediator of heavy metal Pb in soil Surya Ari Widya; Moch. Arifin; Sri Wiyatiningsih
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 5, No 1 (2022)
Publisher : Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.afssaae.2022.005.01.6

Abstract

Marginal soil is infertile soil caused by various factors, one of which is the excessive accumulation of heavy metals. FOBIO microorganism-based biopesticide formula containing phosphate solubilizing bacteria is expected to be used to reduce excess heavy metals in the soil. Brasica rapa L. is a variety resistant to Pb heavy metal stress and absorbs more heavy metals into root tissue than leaf tissue with the help of microorganisms. This study aimed to determine the combination of Brassica rapa L. and FOBIO biopesticide in absorbing Pb in the soil, determine the growth of Brassica rapa L. at each Pb concentration, and determine the population of phosphate-solubilizing bacteria in the soil at each level of Pb stress after remediation. This study used variations in the concentration of heavy metals, particularly Pb. Parameters observed included plant growth, Pb concentration in the soil before and after remediation, and the population of phosphate-solubilizing bacteria. The results showed that combining FOBIO biopesticides and Brassica rapa L. could reduce Pb concentration in the soil. The growth of Brassica rapa L. plants was significantly different after treatment. The findings confirmed that increasing, the concentration of Pb led to a decrease in the population of phosphate-solubilizing bacteria.

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