نتایج جستجو برای: Cellulolytic bacteria

تعداد نتایج: 181593  

Journal: :Applied and environmental microbiology 1985
J E Warshaw S B Leschine E Canale-Parola

Obligately anaerobic, mesophilic, cellulolytic bacteria were isolated from the wetwood of elm and maple trees. The isolation of these bacteria involved inoculation of selective enrichment cultures with increment cores taken from trees showing evidence of wetwood. Cellulolytic bacteria were present in the cores from seven of nine trees sampled, as indicated by the disappearance of cellulose from...

Journal: :Applied and environmental microbiology 1988
K J Wedekind H R Mansfield L Montgomery

The fibrolytic microbiota of the human large intestine was examined to determine the numbers and types of cellulolytic and hemicellulolytic bacteria present. Fecal samples from each of five individuals contained bacteria capable of degrading the hydrated cellulose in spinach and in wheat straw pretreated with alkaline hydrogen peroxide (AHP-WS), whereas degradation of the relatively crystalline...

Journal: :Journal of dairy science 1996
P J Weimer

The bacteria Fibrobacter succinogenes, Ruminococcus flavefaciens, and Ruminococcus albus generally are regarded as the predominant cellulolytic microbes in the rumen. Comparison of available data from the literature reveals that these bacteria are the most actively cellulolytic of all mesophilic organisms described to date from any habitat. In light of numerous proposals to improve microbial ce...

Journal: :Microbiology 2001
J Chen P Weimer

Competition among three species of ruminal cellulolytic bacteria - Fibrobacter succinogenes S85, Ruminococcus flavefaciens FD-1 and Ruminococcus albus 7 - was studied in the presence or absence of the non-cellulolytic ruminal bacteria Selenomonas ruminantium or Streptococcus bovis. Co-cultures were grown under either batch or continuous conditions and populations were estimated using species-sp...

2015
Yongjun Wei Haokui Zhou Jun Zhang Lei Zhang Alei Geng Fanghua Liu Guoping Zhao Shengyue Wang Zhihua Zhou Xing Yan Lorenzo Brusetti

Diverse cellulolytic bacteria are essential for maintaining high lignocellulose degradation ability in biogas digesters. However, little was known about functional genes and gene clusters of dominant cellulolytic bacteria in biogas digesters. This is the foundation to understand lignocellulose degradation mechanisms of biogas digesters and apply these gene resource for optimizing biofuel produc...

Journal: :Applied and environmental microbiology 1989
M A Barlaz D M Schaefer R K Ham

Techniques were evaluated for formation of a liquid inoculum from shredded municipal refuse, including chilling the refuse at 4 degrees C prior to blending and multiple washing and blending cycles. The average count of cellulolytic bacteria from six different detachment treatments was 5.1 x 10 cells per g (dry weight) of refuse with a range of 0.7 x 10 to 12.7 x 10 cells per g (dry weight). The...

Journal: :علوم دامی ایران 0
حامد خلیل وندی بهروزیار استادیار گروه علوم دامی، دانشکده کشاورزی، دانشگاه ارومیه مهدی دهقان بنادکی دانشیار گروه عوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران محمد غفارزاده استادیار گروه علوم و فناوری سیلیکون، پژوهشکده توسعه فرایندهای شیمیایی، پژوهشگاه شیمی و مهندسی شیمی ایران کامران رضایزدی دانشیار گروه عوم دامی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

the aim of this study was to determine effects of different fatty acid profiles on rumen digestion coefficients, some of rumen metabolism parameters and rumen microbial populations. different oils were used as source of fatty acids such as, oleic, linoleic, linolenic, dha and epa. palmitic acid supplemented from a commercial product (bergafat t-300) containing high palmitic acid percentage. res...

Journal: :Journal of bacteriology 1956
L J HAMLIN R E HUNGATE

Studies in this and other laboratories have disclosed a variety of starch-digesting rumen organisms, including Streptococcu bouis (Hungate et al., 1952), several cellulolytic strains (Hungate, 1950), and various non-cellulolytic bacteria (Gall et al., 1947; Gall and Huhtanen, 1951; Huhtanen and Gall, 1953a, b; Bryant and Burkey, 1953a,b; Jayko, 1953; McPherson, 1953; van der Wath, 1948) as well...

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