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Rista Anggriani
Universitas Muhammadiyah Malang
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Public Health Other

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IDENTIFIKASI FITOKIMIA DAN KARAKTERISASI ANTOSIANIN DARI SABUT KELAPA HIJAU (COCOS NUCIFERA L VAR VARIDIS) Anggriani, Rista; Ain, Nurul; Adnan, Syaiful; Novianto, Muhamad Fajar
Jurnal Teknologi Pertanian Vol 18, No 3 (2017)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (359.427 KB) | DOI: 10.21776/ub.jtp.2017.018.03.16

Abstract

ABSTRAKPenelitian ini bertujuan untuk mengidentifikasi senyawa fitokimia dan mengarakterisasi antosianin pada sabut kelapa hijau. Hasil uji fitokimia menunjukkan bahwa ekstrak kasar metanol yang mengandung HCl 1% dari sabut kelapa hijau mengandung antosianin sebagai salah satu flavonoid dengan kandungan 8.34 mg/100 g berat basah. Hasil LC/MS menyatakan bahwa terdapat 4 jenis antosianin didalamnya yakni Cyanidin-3-O-glucoside, Peonidin-3-O-glucoside, Cyanidin-3-O-(6”-O-coumaroyl)-glucoside, Petunidin-3-O-glucoside. Hasil ini menunjukkan bahwa sabut kelapa hijau dapat berpotensi sebagai sumber pigmen antosianin alami ABSTRACTThe objective of this study was to identify photochemical and characterize anthocyanin of green coconut fiber. The result of phytochemical screening of methanol HCl 1% extract showed the presence of anthocyanin 8.34 mg/100 g (wb) as one of flavonoid. Moreover, LC/MS confirmed 4 types of anthocyanin detected such as Cyanidin-3-O-glucoside, Peonidin-3-O-glucoside, Cyanidin-3-O-(6”-O-coumaroyl)-glucoside, Petunidin-3-O-glucoside. This study recommend that green coconut fiber can potentially as a source of natural anthocyanin
KARAKTERISTIK EDIBLE FILM BERBASIS GEL BUAH OKRA (Abelmoschus esculentus L) DENGAN PENAMBAHAN CMC (CARBOXY METHYL CELLULOSE) DAN GLISEROL Warkoyo Warkoyo; Ardiana Desi Ayu Taufani; Rista Anggriani
AGROINTEK Vol 15, No 3 (2021)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v15i3.10009

Abstract

The gel found in okra fruit is a long-chain hydrocolloid polysaccharide which can be used as a stabilizer in edible films. Previous study showed that addition of cmc and glyserol 0.50% : 0.75% in edible film based on okra fruit gel resulted 24.83 MPa of tensile strength and moderate elongation (18.09%). Meanwhile, cmc is used to improve the tensile strength and elongation of edible film and glycerol as a plasticizer. So it need to reformulate between cmc and glycerol by increasing its concentration. The aim of this research is to access the characteristic of edible films based on okra fruit gel due to the increase of cmc and glycerol concentration more than 1%, in order to produce edible films characteristic that meet standards. The results showed that the treatment of cmc 3% and glycerol 1.5% produced edible films that met the standards with 0.17 mm of thickness, 31.62 % of solubility, 1.07 A546/mm of transparency, 19.56 MPa of tensile strength, and 3.31 g/m2/h of WVTR. More over, the elongation in this treatment obtained up to 186%. Thus, the edible film of this treatment has great potential as an alternative to food packaging
Efektivitas Pemakaian Mesin Magic Sugar Cane Terhadap Penurunan Kualitas Nira pada Sistem Tebang Angkut Retno Muji Rahayu; Warkoyo Warkoyo; Noor Harini; Rista Anggriani
Jurnal Ilmiah Teknologi Pertanian Agrotechno Vol 7 No 1 (2022)
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JITPA.2022.v07.i01.p09

Abstract

Sugarcane plantations have a role in the development of agriculture in Indonesia. Sugarcane plants needed by industry as raw materials for making sugar, which became nine staples. National sugar production has decreased productivity in terms of yield due to the process of delaying milling (down time). Milling delays of up to three days can decrease the quality of sugarcane juice as reviewed from the increase %brix, decreased pH, increase in sugar content reduction %brix and decrease HK. Design the magic machine sugar cane into a sugarcane harvesting machine tool with sugarcane juice output that aims to optimize the quality of sugarcane juice so that there is not fermentation process and inhibit the hydrolysis of sucrose caused by enzymatic reactions and microbiological activity. The method of design starts from the stage of drafting, identification of problems, solution, designing and prototype. The results of the Magic Machine Sugar Cane design are designed with a height of 1.85 meters and a width of 1.65 meters and a length of 3.75 meters consisting of diesel components, cutting blades, cane carriers, cane cutters, wheels, roll mills, filters, handles, frame body and equipped with a storage tube with the principle of maintaining the sugarcane juice temperature to 5oC. Magic Machine Sugar Cane effective in maintaining the quality of the sugarcane juice during the process of the cutting and transport system.
Penetapan Kadar Aflatoksin B1, B2, G1, dan G2 pada Olahan Kacang Tanah dengan Metode HPLC Andalusia Trisna Salsabila; Rike Maya Wardhani; Ary Chodijayanti; Puryani puryani; Damat damat; Rista Anggriani
Jurnal Teknologi Pangan dan Hasil Pertanian Vol 16, No 2 (2021): September
Publisher : Faculty of Agricultural Technology, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jtphp.v16i2.4544

Abstract

Kacang tanah (Arachis hypogaea L) memiliki banyak manfaat seperti mencegah peningkatan kadar kolesterol, pencegahan keriput, kandungan serat tinggi, sumber energi dan pencegahan kanker. Akan tetapi jika dalam proses pemanenan, penyimpanan serta pengolahannya yang tidak sesuai, maka kacang tanah terkontaminasi aflatoksin yang berbahaya bagi kesehatan. Batas kadar cemaran aflatoksin pada kacang tanah dan hasil olahannya diatur dalam Peraturan Badan POM Nomor 18 Tahun 2018. Penelitian ini bertujuan menetapkan kadar kontaminasi aflatoksin B1, B2, G1 dan G2 pada olahan kacang tanah dengan prinsip ekstraksi menggunakan immunoaffinity column dengan instrumen High Performance Liquid Cromatogram (HPLC) detektor fluoresen. Hasil menunjukkan bahwa kromatogram baku kerja Aflatoksin G1, G2, B1, dan B2 berturut-turut menunjukkan respon terbentuknya peak pada waktu retensi 6,966 menit, 8,395 menit, 12,806 menit dan 10,395 menit. Hasil kromatogram sampel yang diuji tersebut memberikan respon terbentuknya peak pada waktu retensi yang berbeda dengan baku aflatoksin. Sehingga kedua sampel tersebut dapat disimpulkan tidak terdeteksi mengandung aflatoksin B1, B2, G1 dan G2 dengan nilai LOD aflatoksin G1 sebesar 0,8311 ng/mL, aflatoksin G2 sebesar 0,0941 ng/mL, aflatoksin B1 sebesar 0,3046 ng/mL dan aflatoksin B2 sebesar 0,3143 ng/mL.
PERBANDINGAN MUTU FRUIT LEATHER TOMAT DARI TEPUNG AGAR-AGAR RUMPUT LAUT (Gracilaria sp.) HASIL EKSTRAKSI AIR KELAPA DAN AGAR-AGAR KOMERSIL Rista Anggriani; Noor Harini; Shandra Berliana
Agroindustrial Technology Journal Vol 4, No 2 (2020): Agroindustrial Technology Journal
Publisher : Universitas Darussalam Gontor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21111/atj.v4i2.4992

Abstract

Abstract.Tomatoes as climacteric fruit have a high water content of around 94% which causes spoilage, whereas tomatoes have vitamin C of about 5.78 mg which is beneficial for health. Thus the processing is needed to extend its shelf life. Fruit leather is processed from fruit flesh in the form of dry thin sheets that are easy to roll. A plastic texture is a requirement for fruit leather, so the addition of gelling agents is needed. Previous research has succeeded in extracting agar from Gracilaria sp seaweed using coconut water that meets FAO standards. Therefore the aim of this research is to apply the agar results from coconut water extraction to the fruit leather and to compare the quality of the fruit leather using commercial agar. The experimental design used was a simple randomized block design with 4 treatments, consisted of fruit leather tomatoes using agar extract from coconut water and commercial agar at two concentrations (0.6 and 0.9%). The results obtained between the quality of the fruit leather tomatoes and the agar results from coconut water extraction with commercial agar showed almost the same characteristicin all parameters both in chemical, physical and sensory characteristics, although statistically there were differences in notations on moisture content, TPT, thickness and tensile strength. This indicates that the agar from coconut water extraction can act as a gelling agent by producing fruit leather that its quality is almost the same as commercial agar.Keywords: agar-agar, fruit leather, gelling agent, tomato AbstrakTomat sebagai buah klimaterik mempunyai kadar air yang tinggi sekitar 94% yang menyebabkan tomat mudah busuk, padahal tomat mempunyai vitamin C sekitar 5,78 mg yang bermanfaat untuk kesehatan. Sehingga dibutuhkan pengolahan untuk memperpanjang daya simpannya. Fruit leather merupakan olahan dari daging buah berbentuk lembaran tipis kering yang mudah digulung. Tekstur yang plastis menjadi syarat dari fruit leather, sehingga dibutuhkan penambahan gelling agent. Penelitian sebelumnya telah berhasil mengekstraksi agar-agar dari rumput laut Gracilaria sp dengan menggunakan air kelapa yang memenuhi standar FAO. Sehingga tujuan dari penelitian ini adalah untuk mengaplikasikan agar-agar hasil ekstraksi air kelapa pada fruit leather dan membandingkan mutu fruit leather yang menggunakan agar-agar komersil. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok sederhana dengan 4 perlakuan yakni fruit leather tomat dengan menggunakan agar-agar hasil ekstraksi air kelapa dan agar-agar komersil pada dua konsentrasi (0,6 dan 0,9%). Hasil yang didapat antara mutu fruit leather tomat dengan agar-agar hasil ekstraksi air kelapa dengan agar-agar komersil menunjukkan angka yang hampir sama di segala parameter baik di karakteristik kimia, fisik dan organoleptik, meskipun secara statistik ada perbedaan notasi pada kadar air, TPT, ketebalan dan kuat tarik. Hal ini mengindikasikan bahwa agar-agar hasil ektraksi air kelapa mampu berperan sebagai gelling agent dengan menghasilkan fruit leather yang mutunya hampir sama dengan agar-agar komersil.Kata kunci: agar-agar, fruit leather, gelling agent, tomat
Kajian Mutu Selai Lembaran Jambu Biji (Psidium guajava) Akibat Konsentrasi Ekstrak Antosianin Bunga Mawar (Rosa sp) dan Jenis Agen Pembentuk Gel Fina Innama Listin; Elfi Anis Saati; Rista Anggriani
Food Technology and Halal Science Journal Vol. 2 No. 1 (2019): Januari
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (259.882 KB) | DOI: 10.22219/fths.v2i1.12964

Abstract

Guava as one of the agribusiness commodities in the primary agricultural sector has several advantages that make this type of fruit in great demand. Proper and correct processing can increase the shelf life of horticultural products, better flavor values have an impact on the preferences and economic value more than the nutritional value contained in the processed fruit. Red guava is rich in pectin, which is very suitable to be processed into slice jam. Slice jam is the result of modification of semi-solid jam. Slice jam is known as fruit leather. The purpose of this study was to determine the interaction between the concentration of rose extract and the difference of gelling agent to physical and chemical characteristics of the guava slice jam. The research method used was Group Randomized Design (GRD) factorial with 2 factors. The first factor was the concentration of rose extract consisting of 5 levels (0%, 2.5%, 5%, 7.5%, 10%). The second factor was the difference of gelling agent consisting of 2 levels (agar 1.5% and carrageenan 1.5%). Parameters analyzed included total soluble solid (° Brix), acidity (pH), vitamin C content, antioxidant activity, total anthocyanin, texture, color intensity (L, a +, b +) and hedonic test (flavor, taste, Appearance, texture). The results of this study showed that there was an interaction between the addition of rose extract concentration and the difference of gelling agent to dissolved solid (° Brix), vitamin C content, antioxidant activity, total anthocyanin, brightness color intensity (L) and redness (a+) guava slice jam. The best treatment was derived at the treatment of 10% roses extract with carrageenan that had 34.20 ° Brix of total soluble solid almost approach the standard of jam (SNI 01 – 3746 – 2008), 3.26 of pH, 96.56 mg / g of vitamin C, 81.45% of antioxidant power, 20.29 mg / g of level anthocyanin, 1.86 of texture, 3.13 of flavor score (quite like), 3.33 of taste score (quite tasty), 3.93 of appearance score (interesting), 2.77 of texture score (quite elastic).
PEMBUATAN COOKIES SUBSTITUSI TEPUNG TALAS (Colocasia esculenta (L) Schot) DAN TEPUNG DAUN KELOR (Moringa oleifera Lamk) Dila Yunita Ardianti; Rista Anggriani; Sukardi Sukardi
Food Technology and Halal Science Journal Vol. 2 No. 1 (2019): Januari
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.03 KB) | DOI: 10.22219/fths.v2i1.12973

Abstract

Cookies are products that have a sweet taste with ingredients derived from wheat flour. Wheat flour can be replaced with local raw materials, such as taro flour. Moreover, cookies need to be added to functional compounds, namely Moringa leaf flour which has antioxidant properties and give a green color to the product produced. The purpose of this study was to determine the physical-chemical and organoleptic cookies substituted with taro flour and fortified with Moringa leaf flour and to determine the effect of using taro flour and Moringa leaf flour on antioxidant activity in cookies. This study used a Completely Randomized Design (CRD) which is arranged in a simple manner and with data retrieval, in which each study carried out 4 replications. The factor was the concentration of taro flour and moringa leaf flour. The parameters analyzed were water content, ash, protein, fat, carbohydrate, fiber, the activity of antioxidants, and color. While the organoleptic tests were color, taste, and texture. Cookies for substitution of taro flour and fortification of moringa leaf flour have a very significant effect on K1 (Wheat flour 40 g + Taro flour 50 g + Moringa leaf flour 10 g) on parameters 1,92% of water, 2,11% of ash, 23,34% of fat, 7,52% of the protein in color parameters produces greenish color (a-) 4.65 and yellowish color (b +) 15,83, and organoleptic test appearance 2,60, in treatment K5 (Wheat Flour 40 g + Taro flour 58 g + Moringa leaf flour 2 g) had a very significant effect on fiber content parameters 0,18%, carbohydrate content 71,59%, texture 36,43 N / m2 and in the organoleptic test taste 3.60, treatment K4 ( K4: 40 g of Wheat flour, 56 g of Taro flour, 4 g of Moringa leaf flour) has the highest brightness test value (L) of 46,00 and in the highest value organoleptic parameters of treatment K3 (40 g of Wheat Flour, 54 g of Taro Flour, 6 g of Moringa leaf flour) of 2,75.
Efek Penambahan Sari Buah Mengkudu (Morinda citrifolia L.) pada Roti Tawar terhadap Kadar Glukosa Darah Pada Tikus yang Diinduksi Aloksan Nurul Laelatunisa; Nikmatul Rizky; Rachmadanti Arum; Rista Anggriani
Food Technology and Halal Science Journal Vol. 2 No. 2 (2019): Juni
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.362 KB) | DOI: 10.22219/fths.v2i2.12992

Abstract

Noni (Morinda citrifolia L) has been known to have antihyperglycemic activity. Xeronine compounds, alkaloids, which play a role in controlling blood glucose. In the previous research, researchers have made white bread with the addition of noni juice, but there has not been an analysis of its antihyperglycemic activity. So this study aims to determine the effect of white bread with the addition of noni juice (50, 150, 250ml) on the reduction of blood glucose in vivo. Male white mouse mice aged 3 months were grouped into 7 groups namely negative control, positive control, noni juice, noni juice without bread, and noni juice with noni juice (50,100, and 150 mL). All groups except the negative controls were induced with 200 mL alloxan until the rats were declared hyperglycemic (blood glucose> 135 mg / dL). After that the rats have fasted, then blood glucose levels before and after being given bread were measured every 30 minutes until the 120th minute. Blood glucose measurements are measured directly through the tail vein using a glucometer. In addition, white bread is also tested qualitatively alkaloids. The results obtained with the addition of 250 ml noni juice can reduce 33 mg / dL after consumption. White bread with the addition of noni juice shows positive alkaloid content.
Daya Terima, Zat Gizi, dan Nilai Energi Roti Tawar Anti- Diabetes dengan Penambahan Sari Mengkudu (Morinda citrifolia L.) Rista Anggriani; Nurul Laelatunisa; Nikmatul Rizky; Rachmadhanti Arum
Food Technology and Halal Science Journal Vol. 3 No. 1 (2020): Januari
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (151.064 KB) | DOI: 10.22219/fths.v3i1.13060

Abstract

White bread is a popular food product in Indonesia which is dominated by carbohydrate content. To improve its function, the noni juice which has phytochemical compounds of the alkaloid group was added. However, noni has a very strong aroma, which makes this noni rarely processed. This study aims to analyze the nutritional content, energy value, and organoleptic test of white bread added with noni juice. This research used a descriptive experimental design that the data is compared with SNI No 01-3840-1995 of white bread (Standard Nasional Indonesia = Indonesia Standard Requirement). Noni juice is added by four levels (0, 50, 150, 250ml). The results found that the more noni juice added would cause the addition of flour used, thereby increasing the calories per serving. In addition, the addition of noni juice causes an increase in brown color and aroma but decreases the tenderness, and sweetness of white bread.
Kajian Karakteristik Fisik dan Mekanik Edible Film Berbasis Pati Umbi Suweg (Amorphophallus paeoniifolius) dengan Variasi Konsentrasi Lilin Lebah Evi Lusiana Dwi Safitri; Warkoyo Warkoyo; Rista Anggriani
Food Technology and Halal Science Journal Vol. 3 No. 1 (2020): Januari
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (386.812 KB) | DOI: 10.22219/fths.v3i1.13061

Abstract

Suweg tuber contains very high starch so that it can be used as one of the ingredients for the edible film. The use of a single ingredient from the starch group has a disadvantage because it has a weak and rigid, so it needs to be added ingredients to improve the nature of the edible film, namely by adding beeswax. The addition of beeswax is expected to improve the physical and mechanical properties of the edible film because its hydrophobic nature is a barrier to the loss of steam from products packed by the edible film. This research used a factorial randomized block design using two factors: suweg tuber starch concentration (3%.4%, and 5%) and beeswax concentration (1%.2%, and 3%). Parameters of research included analysis of raw materials in the form of water content, starch content and amylose starch content of suweg tubers whileanalysis edible film included the thickness, transparency, tensile strength, elongation, solubility, water vapor transmission rate and surface structure. The results showed that there was a very real interaction between the addition of suweg tuber and beeswax starch to thickness, elongation, tensile strength, and water vapor transmission rate and there was a real interaction with the transparency and solubility of edible film. The best treatment with near-standard results is edible film with suweg tuber starch concentration 3% (b/ v) and beeswax concentration 1% (b/ v) The surface structure of edible film on starch addition 3% (b/ v) results in a structure that more flat and soft, while the addition of beeswax 1% (b/ v) results in smaller pores.
Co-Authors Adnan, Syaiful Andalusia Trisna Salsabila Anggie Audya Arwinda Rudiawaty Ardiana Desi Ayu Taufani Ary Chodijayanti Aulia Shalsabilla Nanda Sahrevi Cheryll Chameloza Damat damat Desak Gede Putri Wijayanthi Dila Yunita Ardianti Elfi Anis Saati Elfi Anis Saati Evi Lusiana Dwi Safitri Faradiba Hijriani Harahap Fina Innama Listin Marcya Hulwatul Purtanti Melinda Anggita Putri Mochammad Arif Saputra Nikmatul Rizky Nina Nurazizah Purnomo Putri Noor Harini Novianto, Muhamad Fajar Nur Aini Dwi Cahyo Nurul Ain, Nurul Nurul Laelatunisa Puryani . Rachmadanti Arum Rachmadhanti Arum Retno Muji Rahayu Rike Maya Wardhani Rizki Khoirun Nisa Shandra Berliana Shandra Berliana Sukardi Sukardi Sukardi Sukardi Susi Oxyvia Rosenansi Viajeng Purnama Putri Vritta Amroini Wahyudi Warkoyo .