High-Temperature L-Lactic Acid Fermentation of Food Waste Under Open Condition and Its FISH Analysis of Its Micro Flora

نویسندگان

  • Kenji Sakai
  • Yutaka Ezaki
  • Saowanit Tongpim
  • Vichien Kitpreechavanich
چکیده

When minced model kitchen refuse was inoculated with Bacillus coagulans and incubated under non-sterilizing open condition, at the temperature below 45°C, racemic mixture of D-and L-lactic acid was found, while L-lactic acid was selectively accumulated at 50-65°C. To analyze microflora of such mixed culture system, whole cells (fluorescent in situ hybridization) using species and group of specific 16S rRNA-targeted oligonucleotide probes (16S-FISH) was applied. As a result, predominancy of mesophilic lactic acid bacteria at lower temperature, and of Bacillus coagulans at higher temperature was confirmed.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effect of Temperature and pH on Formulating the Kinetic Growth Parameters and Lactic Acid Production of Lactobacillus bulgaricus

Background and Objectives: Lactobacillus delbrueckii ssp bulgaricus is widely used in dairy industries as a starter for yogurt production. This study was designed using response surface methodology (RSM) in 12 batch pH-controlled cultures of Lactobacillus delbrueckii sub-ssp. bulgaricus for determining the effect of temperature and pH on the biomass production of a native strain of L. bulgaricu...

متن کامل

Application of anaerobic digestion products of municipal solid food wastes in treating wastewaters

Anaerobic digestion is the breakdown of biodegradable organic material by microorganisms in the absence of oxygen or in an oxygen-starved environment.This technology is superior to the landfilling and also the aerobic composting. The aim of the present study was to examine whether the effluent Volatile Fatty Acids from the anaerobic acidogenesis of the food waste can be used du to its high valu...

متن کامل

Isolation, identification and characterization of thermo-tolerant acetic acid bacteria for semi-continuous acetous fermentation at high temperature

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...

متن کامل

Isolation, identification and characterization of thermo-tolerant acetic acid bacteria for semi-continuous acetous fermentation at high temperature

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...

متن کامل

L(+) lactic acid production and separation from dairy wastes(whey):in situe separation of lactic acid using lon-exchange resins in automatic control of PH.

Whey with a large amount of BOD(50000 PPM) is a dangerous environmental pollutant.this important source of lavtose(4-5%) is A USEFULL SUBSTRATE FOR A RANGE of fermentation processes.lacitic acid with swvwral applications in industries is one of these products.Specially L(+) isomer of this acid worthing 10 times as much as the mixture of L&D,is used in medical purposes such as absorbable surgica...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008