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Centre of Science and Technology Universitas PGRI Semarang Jl. Sidodadi Timur No. 24 Semarang Jawa Tengah Indonesia 50232
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International Journal of Advance Tropical Food (IJATF)
Published by Universitas PGRI Semarang
ISSN : -     EISSN : 27155889     DOI : https://doi.org/10.26877/ijatf
Core Subject : Health, Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Medicine & Pharmacology
International Journal of Advance Tropical Food (IJATF) is a peer-reviewed open-access international scientific journal who aims to provide an international platform for researchers, professionals, lecturer, and educational practitioners on all topics related to advance in tropical food issues, insight by leading scholars, theorists, and practitioners worldwide. IJATF papers will be published twice a year by Universitas PGRI Semarang, Jawa Tengah, Indonesia. International Journal of Advance Tropical Food (IJATF) is a peer-reviewed open access journal published twice in a year (Mei and November). The aim of the International Journal of Advance Tropical Food (IJATF), e-ISSN 2715-5889, is to provide an international forum for the sharing, dissemination and discussion of research, experience and perspectives across a wide range in tropical food issues. The Journal invites original research articles and not simultaneously submitted to another journal or conference. The whole spectrum of research in tropical food issues are welcome, which includes, but is not limited to the following topics: Tropical Food Science and Technology Tropical Food Engineering Tropical Food Chemistry and Nutrition Tropical Food Microbiology Tropical Food Quality and Safety Tropical Food Laws and Agri Business Management
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Makanan
Articles 5 Documents
 1 
Search results for , issue "Vol 2, No 1 (2020): May" : 5 Documents clear
Changes In Vitamin C and Total Microbes Of Papaya Fruit (Carica papaya L.) Which Is Processed Minimally Using Edible Coating Of Agar-agar Based On The Storage Time Liya Apriani; Siti Aminah; Joko Teguh Isworo
International Journal of Advance Tropical Food Vol 2, No 1 (2020): May
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijatf.v2i1.6127

Abstract

Minimal processing and edible coatings began to be known to provide food security and improve the quality of food products at the time of storage. This study was to determine the effect of minimal processing using agar-agar based on storage time to changes in vitamin C and total microbes papaya (Carica papaya L.).This research is an experimental laboratory study with the research design used is a two-factor Randomized Completely Design (CRD). The number of units used in the study was 28 samples followed by samples without agar coating. Data on vitamin C were measured by the iodimetry method, total microbes by the Total Plate Count (TPC) method. The statistical test used was the Two Way Anova. There are differences in the results of tests of vitamin C levels, total microbes and weight loss between the treatment and control groups. There is a minimal processing effect using agar-agar on vitamin C levels (ρ = 0.006) and total microbes (ρ = 0,000). Minimal processing using agar-agar coatings based on long storage effect on the levels of vitamin C and total microbes papaya (Carica papaya L.)
Wuluh Star Fruit (Averrhoa bilimbi Linn) and Pineapple (Ananas comosus L.) Formulations on the Quality of Fruit Syrup Eva Mayasari; Agustia Agustia; Tri Rahayuni
International Journal of Advance Tropical Food Vol 2, No 1 (2020): May
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijatf.v2i1.6158

Abstract

Syrup is an alternative processed food derived from fruits. Fruit syrup is produced from starfruit and pineapple juice formulations. This study aims to get the best quality of fruit syrup from starfruit juice extracts and pineapple. The study design used a Randomized Block Design with one treatment factor consisting of the ratio of starfruit and pineapple juice that is 3: 1; 2: 1; 1: 1; 1: 2; 1: 3 of a total of 300 mL of juice. The results showed that the more pineapple ratio added to the manufacture of fruit syrup, it can increase the pH value, vitamin C, total dissolved solids, viscosity, total sugar and sensory appearance
Effects of Addition Chili Ground to The Characteristics of Bekasam from Cork Fish (Channa striata) During Fermentation Normayanti Normayanti; Dewi Kartika Sari; Rita Khairina
International Journal of Advance Tropical Food Vol 2, No 1 (2020): May
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijatf.v2i1.6172

Abstract

Bekasam is a fermented fish product made from fish, salt, and roasted rice or rice that is mixed and fermented for 7 days. This study aims to determine the effect of the addition of ground chili at different concentrations on total acid, pH value, total lactic acid bacteria, and sensory properties of cork fish bekasam. The research design used was completely randomized design, 3 treatments and 3 replications. The treatments given were IBG without the addition of ground chili, IBGC1 adding 10% ground chili and IBGC2 adding 20% ground chili. Data were collected for total acid, pH, and total lactic acid bacteria fermentation days 1, 3, 5, and 7. The sensory properties were observed on days 1 and 7. The results showed that the addition of ground chili can reduce pH during 7 days fermentation, but the increase in total acid was not significant. The addition of 10% ground chili has a positive effect on the growth of lactic acid bacteria. The addition of 20% ground chili showed an inhibition of the growth of lactic acid bacteria during fermentation. Sensory test results stated that panelists preferred bekasam with the addition of 10% ground chili compared to control brakes and the addition of 20% ground chili.
The properties of Sweet Sorghum Syrup Produced by Combined Vacuum Falling Film and Rotary Evaporation Sudarminto S. Yuwono; Nur Istianah; Dego Y. Ali; Rizkhia J.A. Aghata
International Journal of Advance Tropical Food Vol 2, No 1 (2020): May
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijatf.v2i1.5811

Abstract

The combination of Vacuum Falling Film Evaporator(FFE) and Rotary Evaporator (RE) was conducted in producing sweet sorghum syrup. The aim of this research was to evaluate the performance of single FFE and combined FFE-RE on sorghum syrup concentration. Single FFE was studied at the temperature of 70, 80, and 90°C. The best single FFE treatment was continued by RE at 60, 70, and 80°C. Sweet sorghum that were concentrated using single FFE(90°C) and combined FFE(90°C)-RE(80°C) had the highest Total Soluble Solid(TSS) of 44.2°Brix and 87.53°Brix, also the acceptable lightness(L*) of 30.13 and 25.83 respectively. That combined FFE-RE produced sorghum syrup had the highest overall Hedonic score 3.34 within the taste parameter value of 2.89; color of 3,75; aroma of 3,29; and texture of 3.42. It was also accomplished with the redness(a*) of -2.11, yellowness(b*) of 5.13, turbidity of 387.66 NTU, viscosity of 2036.67cP, and reducing sugar of 52.54%.
Effect of Cryoprotectant Concentration on Starter Culture Viability Sinbiotic Yogurt with Freeze Dried Sweet Potato Extract Supplementation Agustina Intan Niken Tari; Catur Budi Handayani; Sri Hartati
International Journal of Advance Tropical Food Vol 2, No 1 (2020): May
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijatf.v2i1.6095

Abstract

Synbiotic yogurt with purple sweet potato extract supplementation as prebiotics and Lactobacillus plantarum Dad 13 isolated from buttermilk as probiotics has potential as functional food, but requires low storage temperatures. The freeze drying technique requires cryoprotectant as a protective material for products such as yogurt. The purpose of this study was to determine the effect of sucrose concentration on the level of viability of  Lactic Acid Bacteria and Lactobacillus plantarum. This study used a Completely Randomized Design with one factor : concentration of sucrose as cryoprotectant: 0%, 2.5%, 5%, 7.5%, and was carried out in three replications. The results showed that the concentration of sucrose significantly affected the yield of freeze dried synbiotic yogurt, total Lactic Acid Bacteria (LAB) after freeze drying, and total Lactobacillus plantarum before and after freeze drying, but did not significantly total amount of LAB before freeze drying. The best treatment, shown in frozen dried synbiotic yogurt with a sucrose cryoprotectant concentration of 5%. The treatment has the following characteristics: yield, 14.797%, total Lactic Acid Bacteria  1.98x 109 CFU / ml before freeze drying, 9.28x 108 CFU / ml after freeze drying, total Lactobacillus plantarum 8.23 x 108 CFU / ml before freeze drying and 6.81 x 108 CFU / ml after freeze drying.

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