Studies on Bacterial Enzymes
نویسندگان
چکیده
The meningococcus cell contains a peptonase enzyme which hydrolyzes the peptides and similar constituents of commercial "peptone." The activity of this enzyme is independent of the presence of the formed bacterial cell. The peptonase enzyme is more resistant to heat and to oxidation than is the maltase enzyme of the same bacteria.
منابع مشابه
Effect of bacterial single cell protein in rainbow trout (Oncorhynchus mykiss) diet on body composition and digestive enzymes activity
In this study, body composition and digestive enzymes activity was assessed in rainbow trout fry (weight 2.51 ± 0.55 g) fed by bacterial single cell (BSC) as a dietary protein source replaced with fish meal as completely randomized design with triplicate for 6 weeks. Experimental diets were prepared in 5 treatments as isonitrogenous with different levels of fish meal and BSC (100% fish meal (A)...
متن کاملEvaluation of the use of alpha-amylase, cellulase, xylanase, and beta-glucanase enzymes in vitro and in vivo on non-specific immune indices, intestinal bacterial flora, cholesterol, and blood glucose of rainbow trout
One of the limitations of aquaculture is the supply of fish meal needed for the aquaculture industry, but the use of plant items instead of fish meal contain anti-nutrients such as non-starch polysaccharides, which is one of the main limitations of using plant items in the diet of carnivorous fish. The present study investigated the in vivo and in vitro enzymes of alpha-amylase, cellulase, xyla...
متن کاملEffects of Lactococcus lactis and Weissella cibaria as probiotic on growth performance, intestinal bacterial flora, digestive enzymes and intestinal histology in common carp (Cyprinus carpio)
The aim of the present study was to investigate the effect of Lactococcus lactis and Weissella cibaria probiotics on growth performance, intestinal bacterial flora, digestive enzymes and intestinal histology in common carp (Cyprinus carpio). Fish with an average initial weight of 17 g were divided into 10 treatments with 3 replications. Fish food in treatments 1, 2 and 3 were supplemented with ...
متن کاملStudy of Biochemical and Molecular Changes of Iranian Rice Cultivars in Interaction with Bacterial Pathogen Xanthomonas oryzae pv. oryzae Causes Leaf Blight Disease
Rice bacterial blight caused by Xanthamonos oryzae pv. oryzae is one of the most destructive bacterial diseases of rice in some areas of rice cultivation in the world, especially in the tropics of Asia. The low efficiency of disease management methods, especially chemical methods, has led to more research on recognizing resistant cultivars and understanding resistance mechanisms through the stu...
متن کاملBeneficial effects of a sodium butyrate source on growth performance, intestinal bacterial communities, digestive enzymes, immune responses and disease resistance in rainbow trout (Oncorhynchus mykiss)
The aim of the present study was to investigate the effects of dietary sodium butyrate on growth performance, intestinal microbiota, digestive enzymes, humoral immune responses and resistance against Aeromonas hydrophila in rainbow trout (Oncorhynchus mykiss) juveniles (39.5±1.12 g). The fish were fed diets supplemented with 0 (SB0), 1.5 (SB1.5), 2.5 (SB2.5) and 5 (SB5.0) g/kg sodium butyrate f...
متن کاملBacterial Carbonic Anhydrases as Drug Targets: Toward Novel Antibiotics?
Carbonic anhydrases (CAs, EC 4.2.1.1) are metalloenzymes which catalyze the hydration of carbon dioxide to bicarbonate and protons. Many pathogenic bacteria encode such enzymes belonging to the α-, β-, and/or γ-CA families. In the last decade, the α-CAs from Neisseria spp. and Helicobacter pylori as well as the β-class enzymes from Escherichia coli, H. pylori,Mycobacterium tuberculosis, Brucell...
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of Experimental Medicine
دوره 49 شماره
صفحات -
تاریخ انتشار 2003