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Journal of Applied Food Technology

jaft
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Published by Universitas Diponegoro

ISSN : 23559152 EISSN : 26147076 DOI : -

Core Subject : Education,

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Journal of Applied Food Technology or JAFT (pISSN 2355-9152 and eISSN 2614-7076) is a peer reviewed journal which is an official worldwide publication of Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University (www.teknologipangan.fpp.undip.ac.id) and in collaboration with Indonesian Food Technologists (www.ift.or.id). The journal publishes two times a year (June and December).

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Articles 7 Documents

Search results for , issue "Vol 7, No 1 (2020)" : 7 Documents clear

Effect of Lesser Yam Flour Addition on Water Content, Texture, Crude Fiber Content, and Reducing Sugar Content of Donut Made from Wheat Flour Indri Iriana Putri; Bambang Dwiloka; Valentinus Priyo Bintoro
Journal of Applied Food Technology Vol 7, No 1 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

This research aimed to determine the addition of lesser yam flour on water content, texture, crude fiber content, and reducing sugar content of donut made from wheat flour. This research was arranged using completely randomized design with 5 treatments and 4 replications consisted of 5 different lesser yam flour concentrations (0–30%) from total flour that had been used. Water content, texture, and crude fiber content were analyzed using Analysis of Variance (ANOVA) at 5% significance level and reducing sugar content was analyzed using regression equation. The result showed the addition of lesser yam flour can reduce water content. However, it can increase texture, crude fiber content, and reducing sugar content. As conclusion, the concentration of lesser yam flour affected the water content, texture, crude fiber, and reducing sugar in donut.

Yeast Detection in Mango Flavored Kefir from Small Scale Manufacture in Semarang, Central Java, Indonesia Ahmad Ni'matullah Al-Baarri; Dian Ari Setianingsih; Yoyok Budi Pramono
Journal of Applied Food Technology Vol 7, No 1 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

This research was done to detect total yeast on small scale kefir industry in Semarang, Central Java, Indonesia. The total plate count method was used to analyze total yeast in mango flavored kefir. This research used mango flavored kefir since this products was the top demand by consumer among kefir flavored products that was produced in this manufacture. Kefir from manufacture was transferred to laboratory using container box to provide buffer in the temperature decrease. As result, total yeast in mango flavored kefir was 1,21±0,06x105 CFU/ml. This total yeast was in the range of the Standard Codex 243-2003 which required a minimum total of 104 CFU/ml. The 1 log unit differences should provide the awareness to manufacture to maintain kefir in low temperature to minimise the multiplication of total yeast resulting the appearance of unwanted flavor. As conclusion, the mango flavored kefir was analyzed in total yeast successfully and in the range of Standard Codex of kefir

Effect of Different Kefir Grain Starter Concentration on Yield, pH, CO2 Content, and Organoleptic Properties of Buffalo Milk Kefir Lorentia Lydia Margareth; Nurwantoro Nurwantoro; Heni Rizqiati
Journal of Applied Food Technology Vol 7, No 1 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

This research was investigated the effect of different kefir grain starter concentration on yield, pH, carbon dioxide (CO2) content, and organoleptic properties of buffalo milk kefir, and to investigated the ideal kefir grain concentration for good quality of kefir. Complete randomized design used in this research with 4 treatments and 5 replications in concentration 2.5, 5, 7.5, and 10% g/v kefir grain. Buffalo milk, kefir grain, Na2CO3 solution, 1% PP solution, pH meter, burette, and analytical balance were used in this research. The yield and pH of kefir was measured. Carbon dioxide (CO2) content was measured by Na2CO3 titration, while the organoleptic properties that included level of sourness, sour aroma, texture, and overall acceptance were done by 25 panelists. The results indicated that different kefir grain starter concentration significantly affected to the yield, pH, CO2 content, and organoleptic properties (p<0.05). The most optimal kefir grain concentration was 5% proved by yield 81.81%, pH value 4.20, CO2 content 0.43%, and proper organoleptic properties which were low level of sourness, acceptable aroma of kefir and texture. As conclusion, the concentration of grain relied on the kefir properties that may achieve in the optimum quality of kefir.

A Study on The Utilization of Purple Sweet Potato (Ipomea batatas L) for Ice Cream as Antioxidants Sudjatinah - Sudjatinah; Cornelius Hari Wibowo; Aldila Sagitaning Putri
Journal of Applied Food Technology Vol 7, No 1 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

The purposes of this study were to determine overrun, water content, anthocyanin and antioxidant content, and to find out the best formulations. The design used was completely randomized design (CRD) with a unidirectional pattern consisting of 5 treatments with 4 replications, while the treatment factor was the disticntion between ratio of sweet potato mash and water, as follows: P1: 50%: 50%; P2`: 60%: 40%; P3: (70%: 30%); P4: (80%:20%); P5: 90%: 10%. The observed variables were the content of water, overrun, anthocyanin and antioxidant activity. The results showed that the treatment had a significant effect (P <0.05) on the average water content, overrun and anthocyanin activity. The treatment did not have a significant effect (P> 0.05) on the average antioxidant activity. In conclusion : the ratio of purple sweet potato mash had a significant effect (P <0.05) on water content, overrun and anthocyanin, but it did not influence significantly (P> 0.05) on the antioxidant activity. Furthermore, the best ratio of water and purple sweet potato mash is 2:8 to produce a standard water content and overrun, anthocyanin levels and high antioxidant activity.

The Effect of Different Type Drying Methods on Chemical Characteristics and Microbiology of Goat Milk Powder Kefir Nurwantoro Nurwantoro; Siti Susanti; Heni Rizqiati
Journal of Applied Food Technology Vol 7, No 1 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

The research aims to test and compare the chemical characteristics and total Lactic Acid Bacteria or LAB of goat milk powder kefir that was produced from cabinet drying, freeze drying and spray drying. Kefir was made from goat milk since it was found as a good digestibility, no β-lactoglobulin, and high protein. Data analysis was performed with the test analysis of variance with a significance level of 5% followed by Duncan testing if significant result was detected. Analysis of total acid was conducted using titration. Analysis of proteins was conducted using Kjeldahl method. Water content analysis was performed using oven and ash content was analyzed using furnace. Analysis of fat content was conducted using Soxhlet method. Analysis of total LAB and total yeast were done using Total Plate Count (TPC). As results, drying method significantly affected (p<0.05) water content, ash content, and total LAB but there was no significant effect (p<0.05) on the total acid, protein content, fat content, and total yeast. As conclusion, the best treatment of drying method in making goat milk kefir powder was spray drying

The Effect of Garam Masala Levels Addition on Chocolate Based Functional Beverage Ratih Hardiyanti; Anjar Ruspita Sari
Journal of Applied Food Technology Vol 7, No 1 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

The increasing popularity of cocoa-based beverage has encouraged the development of various chocolate beverage formulations. Chocolate beverage formulations with addition of garam masala were carried out to produce functional beverage products which are beneficial to consumers and the product itself. Five different concentration of garam masala (0.01%, 0.02%, 0.03%, 0.04%, and 0.05%) were added into chocolate beverage. Preference test was carried out to evaluate panelists’ preference to each formula. Sensory evaluation was performed by giving an assessment using 7-scaled Likert scale for color, aroma, taste, warm sensation (after taste), and overall product. The results showed that the concentration of garam masala addition has an effect (p≤0.10) on the attributes of aroma, warm sensation, and overall product. The most preferred chocolate beverage was with the addition of 0.03% garam masala. Higher concentration of garam masala in chocolate based beverage resulted a higher antioxidant activity as well as phenolic content, as antioxidant component.

Study in Agroindustry of Salted Egg: Length of Salting Process and Marketing Reach Aspects Wulan Sumekar; Ahmad Ni'matullah Al-Baarri
Journal of Applied Food Technology Vol 7, No 1 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

Homemade salted egg production leading to one of agro-industry products has been identified as profitable, yet processing technology of salting needs to be improved. The objective of the study was to analyze the length of salting application of salted eggs, marketing reach, and association between the lengths of salting application with marketing reach. Forty respondents determined by purposive random sampling was carried out on agro-industry center of salted eggs in Brebes, Central Java. The primary data (length of salting and marketing reach) were collected by interview using questionnaire and observation. The levels of NaCl of salted eggs were measured by Argentometri Mohr method. The secondary data were collected by recording relevant documents. Data of length of salting and marketing reach were analyzed descriptively. Relationship between the length of salting and the marketing reach of salted eggs were analyzed using contingency tables with the X2 test. The result showed that all respondents applied length of salting with time duration of salting varied from 12 to 30 days, during which period 52.5% respondents did the salting in >14-18 days. The salinity was still relatively higher than that of recommended by the Indonesian Industry Standard (SNI), which is 2.0%. The respondents also functioned as marketing components; such as consumers, retailers-consumers, and collectors - retailers - consumers with the percentage of 52.5, 35, and 12.5%, respectively. As conclusion, the length of salting technology application might influenced marketing reach and the length of salting technology application mostly could only reach the short marketing.

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