to accomplish the worldwide demand for recombinant human erythropoietin (rhuepo) as a therapeutic, application of cost-efficient expression system of methylotrophic yeast pichia pastoris (p. pastoris) rather than mammalian cells is indispensable. herein, a report on high levels secreted-expression of pichia-derived rhuepo by batch fermentation in a ph stabilized format is presented. the full le...

kocho and bula are fermented product of enset (ensete ventricosum). it is the staple food for 20 million people in ethiopia. the aim of study was to isolate, identify and characterize yeast species from fermented kocho and bulla by using biolog micro station. 300 kocho samples were collected from angacha district. 0.1ml of serially diluted samples were streaked on yeast pepton dextrose agar and...

The distinctive flavor of wine, brandy, and other grape-derived alcoholic beverages is affected by many compounds, including esters produced during alcoholic fermentation. The characteristic fruity odors of the fermentation bouquet are primarily due to a mixture of hexyl acetate, ethyl caproate (apple-like aroma), iso-amyl acetate (banana-like aroma), ethyl caprylate (apple-like aroma), and 2-p...

this study examined sourdough lab containing specific starter cultures used to produce barbari-style bread and evaluated their microbiological shelf life and sensory properties. the effects of sourdough fermentation time (8, 16, 24h), fermentation temperature (28, 32, 36°c) and type of starter culture (lactobacillus sanfransicencis, atcc 14917; lactobacillus plantarum, atcc 43332; a mixture of ...

Nowadays, vinegar is industrially produced by mesophilic acetic acid bacteria (AAB). However, temperature fluctuation during acetous fermentation is inevitable, and may cause process disturbances. This can be mostly avoided using thermo-tolerant AAB. The main purpose of the present study was to isolate thermo-tolerant AAB. Fermentation performances were then evaluated. Twenty-eight different is...

MOL is a local microorganism or natural decomposer that used as starter culture in production of organic fertilizers which known bokashi. The advantage using it can be made from cheap materials by utilizing agricultural waste so increase the added value well reduce environmental pollution. use biodecomposer bokashi accelerate fermentation process. This study aimed to produce where characteristi...

In this study, solid state fermentation (SSF) was carried out to produce single cell protein (SCP) from sugarcane bagasse using Saccharomyces cerevisiae. The SSF experiment were performed in a tray bioreactor. The influence of several parameters including extraction buffer, initial moisture content of substrate, fermentation time, relative humidity in bioreactor, the bioreactor temperature and ...

BACKGROUND Waste is currently a major problem in the world, both in the developing and the developed countries. Efficient utilization of food waste for fuel and chemical production can positively influence both the energy and environmental sustainability. This study investigated using food waste to produce acetone, butanol, and ethanol (ABE) by Clostridium beijerinckii P260. RESULTS In contro...

Abstract This study aimed to estimate the effect of wheat cultivars on in vitro rumen digestibility and fermentation characteristics sprouted grains. Three cultivars, Arriheuk (ARH), Saekeumkang (SAK), Jokyoung (JOK), were harvested at 6 days cultivation stages, while Keunalbory (KEA) was a positive control. The collected grains dried 55oC for 48 h, ground pass 1-mm screen chemical compositions...

since the use of antibiotics in animal feeds has been banned, researches on alternative natural products that modulate ruminal fermentation have been intensified. natural compounds such as plant extracts have been considered to be replaced antibiotics as safe and sustainable alternatives. plant extracts especially essential oils and saponins have strong antimicrobial, antiparasitic, antiprotozo...