Tarakan city has the potential of marine biological resources that are very abundant such as fish, shrimp, seaweed and even jellyfish. Jellyfish is one aquatic commodities found in almost all waters Indonesia. a source nutrient-rich foods give high economic value. This due to lack information about nutritional content The purpose this study determine proximate fresh dry Rhizostoma Pulmo researc...

The ability of two strains of Azotomonas insolita and one strain classified only as Azotomonas species to use molecular nitrogen was investigated by use of several techniques. Molecular (15)N(2) incorporation by growing cultures of Azotomonas was inconsistent and limited. In addition, attempts to demonstrate nitrogen fixation in growing cultures by the radioactive (13)N(2) technique were negati...

The maximal nonlethal dose of the 3a-1 fraction of papain, determined by use of 9-week-old white albino rabbits, was 10 mg per injection, administered intravenously. The immunosuppressive activity of the 3a-1 fraction of papain was studied by its inhibition of sheep red blood cell hemolysin, bacterial agglutinin, and horse serum precipitin. Immune suppression was observed when papain injections...

A definitive method is described for the indirect assay of several tens of milligrams of urea by coulometric titration. Urea was decomposed in concentrated sulfuric acid using a Kjeldahl flask. Subsequently, the formed ammonium ion was titrated with electrogenerated hypobromite ion in a sodium bromide-sodium tetraborate medium of pH 8.6, with amperometric end-point detection. Parameters affecti...

Cotija cheese is an artisanal Mexican cheese produced with raw cow ́s milk. Our objective was to measure the antioxidant and angiotensin converting enzyme (ACE) inhibitory activities of the peptides released during its ripening. For that, Cotija cheeses were ripened 6 months in a chamber at 25 oC without humidity control. Weekly samples were taken to determine acid soluble nitrogen (ASN), non-pr...

The present study is carried out to analyze the trace elements sodium, calcium, magnesium, phosphorus, iron, copper, zinc, manganese by atomic absorption spectrometer (AAS) crude protein by Kjeldahl method and essential and non-essential amino acids by reverse phase high performance liquid chromatography (RP-HPLC) from feathers of cock (Gallus domesticus) before the administration of four ACES ...

Kluyveromyces marxianus ATCC 16045 was cultivated in a batch on minimal medium to overproduce inulinase. The fermented broth was purified by fast protein liquid chromatography and ultrafiltration, and a pure enzyme fraction was obtained. SDS-PAGE electrophoresis allowed calculating molecular mass of 59 kDa, while nitrogen determination by the micro-Kjeldahl method allowed evaluating intrinsic i...