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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
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Engineering Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering
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.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 2, No 2 (2019)" : 5 Documents clear
Evaluation of antibacterial activities from major bioactive constituents of the whole plant of Hedyotis corymbosa Desy Ambar Sari; - Harijono; Chi-I Chang
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 2, No 2 (2019)
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.2019.002.02.1

Abstract

Hedyotis corymbosa is locally known as rumput mutiara from the Rubiaceae family, widely distributed in tropical regions of Asia. Researchers provided scientific evidences the beneficial impact of this plant for pharmacologic alactivity. This study aimed to isolate and evaluate the bioactive constituents based on their biological activities. In this study, the whole plant of H. corymbosa was extracted using methanol. Extract of H. corymbosa was sequentially partitioned using ethyl acetate and n-butanol. The ethyl acetate layer was further fractionated and isolated using chromatographic techniques to obtain the pure compounds. The bioactive compounds structure was determined using spectroscopic analysis especially the Nuclear Magnetic Resonance (NMR). The investigation of H. corymbosa resulted in the isolation of eight compounds, were identified as ursolic acid, 3β-hydroxyolean-11-en-28,13β-olide, β-sitosterol, stigmastane-3,6-dione, ferulic acid, scopoletin, 2-hydroxy-1-methoxyanthraquinone, 3-hydroxy-1,2-dimethoxyanthra-quinone. The antimicrobial effect of the crude extract, partitions and fractions were evaluated using agar well diffusion for antimicrobial susceptibility test and for the pure compounds were evaluated using minimum inhibitory concentration. The ethyl acetate layer and crude extract displayed the higher antimicrobial activities than n-butanol and water layer. The Minimum Inhibitory Concentration (MIC) for the pure compound was shown that most of the compounds have the ability to inhibit human pathogenic bacteria with average 100 µg/mL. The antimicrobial activities showed by the crude extracts, fractions, and pure compounds of H. corymbosa can be used as a commercial product for antimicrobial agent against S. aureus, S. enterica, E. coli and B. substilis.
Optimization formulation of chamomile-based functional beverage as hypnotic agent using response surface method Annisa Ulfah Pristya; Tri Dewanti Widyaningsih
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 2, No 2 (2019)
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.jtp.2019.002.02.2

Abstract

Insomnia problem can be treated by consuming herbs containing apigenin and EGCG. Chamomile and green tea water extract have been found to containapigenin and EGCG. Optimization of the formulation of those herbs is necessary to obtain the highest hypnotic activity. The purpose of this study was to optimize formulation of chamomile, green tea, and cinnamon to obtain functional beverage containing the highest phenolic and flavonoid content, but the lowest caffeine content. The best formula of the herbs was then tested in caffeine-induced mice to see the hypnotic effect. The research design in this experiment was Response Surface Model (RSM) using Central Composite Design (CCD) method. The in vivo test used Post Test Only Control Group Design. Consisting five groups of 30 male mice divided to 6 mice for each group. The optimum formula for functional beverages suggested by RSM was chamomile: green tea : cinnamon of 70.32 : 30.35 : 4.99. The verification results showed that the actual response of this optimum formula had a total phenol of 23.76 mgGAE/g dry herbs, total flavonoids of 126.43 mgQE/g dry herbs, caffeine content of 29.87 mg caffeine/g dry herbs, apigenin levels of 0.07±0.068 µg/g dry herbs, and EGCG of 6.43±0.218 µg/g dry herbs. Functional beverages showed hypnotic activity in group of mice dosed 26 mL/kg bw, which significantly reduced motor activity to 4.83±0.72 sec. As well as significantly reducing the proinflammatory cytokines 
The effect of temperature reduction on the performance and stability of UASB reactors treating synthetic sewage Masood Abdusalam Ghanem Ali
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 2, No 2 (2019)
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.2019.002.02.3

Abstract

The objective of this investigation is to determine the effect of temperature reduction on the performance and stability of laboratory-scale up-flow anaerobic sludge blanket (UASB) treating synthetic sewage. The work was carried out using four 4-litre continuously fed UASB reactors. The operation started at a constant hydraulic retention time of ~24 hours (up flow velocity ~0.02 m hour-1) and an influent COD concentration of ~2250 mg l-1, with an organic loading rate of ~2.25 g COD l-1 day-1. During the experiment, the operating temperature was reduced in a single step from 35 to 30 ⁰C, then stepped down to 25 ⁰C. COD removal efficiency fell slightly from ~96 % in all reactors to ~93%. Effluent TSS concentrations remained below 20 mg l-1 and TSS removal efficiency ranged between 93-98%. Gas production showed a slight disturbance following the initial drop in temperature to 30 ⁰C, but stabilised at around 0.74 l CH4 l-1, 0.30 l CH4 g-1 COD added and 0.31 l CH4 g-1 COD removed. The subsequent drop to 25 ⁰C produced a stronger disturbance, but both volumetric and specific methane production recovered to the previous values by about day 412. The average biogas methane content in all reactors was unchanged or marginally higher at 78-79%.
Utilization of whey waste as a substrate for making nata de whey Fina Ayu Tegarwati; Ana Fairuza Fajriana; Dwi Pujiana
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 2, No 2 (2019)
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.2019.002.02.5

Abstract

Increasing in demand and imports of cheese is parallel to an increase in cheese production annually. High cheese production is directly proportional to generation of whey. Whey is considered as wastewater and usually directly disposed to environment causing a detrimental impact such as water pollution. Whey contains 55% of dairy protein and is potential to be used for nata seed growth. Therefore, it is necessary to valorise whey into a high value-added product. This research aimed to use nutrient-rich whey wastewater as a medium of development for Acetobacter xylinum bacteria in the production of nata de whey, as well as to investigate the effect of of sucrose addition to the characteristics of nata de whey. The research design used was Randomized Block Design (RBD) with 2 factors of Acetobacter xylinum (inoculum) concentration (i.e. 5, 10, and 15%) and sucrose concentration (i.e. 3, 4, and 5%). The results showed that the treatment with addition of 10% inoculum and 4% sucrose produced the nata de whey with superior quality. The resulted nata de whey has pH of 3.2 ± 0.13, total sugar of 4.24 ± 1.11%, total acid of 1.67 ± 0.08%, yield of 84.41 ± 7.27%, thickness of 1.345 ± 0.18 mm, and moisture content of 83.4 ± 1.97%, respectively.
A new method to use Water Pinch Analysis for complex wastewater scenarios Leo-Paul Vaurs; Chaowana Yirong
Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Vol 2, No 2 (2019)
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.2019.002.02.4

Abstract

A new method was developed to easily determine process critical concentrations allowing the use of Water Pinch Analysis to minimize the fresh water (FW) requirement of processes dealing with complex wastewater. This method consists in experimentally recycling water within the studied process until some process units get their key performance indicators negatively impacted. This paper provides all the mathematical tools to calculate the critical concentrations of a generic compound called “contaminant X” based on the critical number of recyclings and effectively use Water Pinch Analysis. This developed method was applied to a continuous and mix batch/continuous process with or without storage tanks, and two scenarios where some processes could remove a fraction of “contaminant X”,  froma biological process for example (such as anaerobic digestion). The Near Neighbour Algorithm had to be slightly modified to be used in pure batch or mix batch/contiguous processes with without storage tank. In all cases, the FW requirement was minimized while guaranteeing that all processes were working at optimal performances. 

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