Preparation and testing of an autolysate of fish viscera as growth substrate for bacteria.
نویسندگان
چکیده
The aqueous soluble phase of acidified and autolyzed fish viscera was used as the nitrogen source in a growth medium for bacteria. The bacteria tested grew faster and produced higher yields of cell mass on this growth medium than on corresponding media with standard tryptone preparations as the nitrogen source.
منابع مشابه
Effect of diets with different levels of soybean meal and Kemin multi-enzyme on growth performance, body composition, and gut lactic acid bacteria of juvenile Beluga (Huso huso)
In this study, the effects of replacing fish meal with soybean meal on growth performance, feed efficiency, body composition, fatty acid profile and gut lactic acid bacteria of beluga sturgeon, Huso huso. Nine diets were formulated (40% crude protein) in which soybean meal was replaced by fish meal at 0 (control), 40 and 80% supplemented and with three multi-enzyme level 0, 1 or 2 g/kg of Kemin...
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 کاملDigestive alkaline proteases from the Tunisian barbell (Barbus callensis): Characterization and application as a detergent additive, in chicken feather-degradation and as a dehairing agent
Alkaline crude enzymes from the viscera of the Tunisian barbel (Barbus callensis) were extracted and characterized. Proteolytic crude extract from barbel viscera was active and stable in alkaline solution. The optimum pH and temperature were 11.0 and 55 °C, respectively, using casein as a substrate. The crude alkaline protease was extremely stable in the pH range of 5.0-12.0. Zymography activit...
متن کاملDigestive alkaline proteases from the Tunisian barbell (Barbus callensis): Characterization and application as a detergent additive, in chicken feather-degradation and as a dehairing agent
Alkaline crude enzymes from the viscera of the Tunisian barbel (Barbus callensis) were extracted and characterized. Proteolytic crude extract from barbel viscera was active and stable in alkaline solution. The optimum pH and temperature were 11.0 and 55 °C, respectively, using casein as a substrate. The crude alkaline protease was extremely stable in the pH range of 5.0-12.0. Zymography activit...
متن کاملEvaluation of growth performance and breeding habits of fighting fish (Betta splendens) under 3 diets and shelters
There are various factors affecting the fighting fish larval survival including nutrition, substrate, water quality, pathogen and stress. Experiments were conducted to study the effect of substrate and live feed on larval survival of fighting fish fry. Nine small glass aquaria (60 cm × 30 cm × 30 cm) were used as breeding tanks. Equal pieces (80 cm2) of rigifoam (T1), polythene (T2) and banana ...
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:
- Applied and environmental microbiology
دوره 50 6 شماره
صفحات -
تاریخ انتشار 1985