The study was carried out to enumerate fungal contamination, and toxigenicity of Aspergillus flavus strains on cacao beans during drying storage. As many as 3500 g storage were purchased from smallholder farmers the plantation areas at Karo Regency, Northern Sumatera. percentage contaminated by fungi conducted using direct plating. Fungal populations soil determined dilution followed pour plate...

Kombucha is a fermented tea beverage containing bioactive compounds from and vital such as acetic acid, D-saccharic acid-1,4-lactone, glucuronic gluconic acids produced the metabolic activities of bacteria yeasts, which benefit human health. contains symbiotic culture yeast (SCOBY), actively ferments sugar. microbial compositions vary due to environmental conditions starter culture. Saccharomyc...

To assess the impacts of Cu and Zn on fungi, we tested the growth of 18 taxonomically different saprotrophic (basidiomycete, ascomycete and zygomycete) fungi and their production of extracellular oxidative enzymes on Cu(0, 100, 200, 400 mg kg–1) or Zn(0, 100, 200, 400 mg kg–1) containing ABTS (2,2 ́-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) agar plates. Coniothyrium sp. was the most toler...

In this paper, we investigate the order and the hyper-order of growth of solutions of the linear differential equation f ′′ +Q ( e ) f ′ + (A1e a1z +A2e 2) f = 0, where n > 2 is an integer, Aj (z) ( 6≡ 0) (j = 1, 2) are entire functions with max {σ (Aj) : j = 1, 2} < 1, Q (z) = qmz + · · · + q1z + q0 is a nonconstant polynomial and a1, a2 are complex numbers. Under some conditions, we prove tha...

Strain S-632 was found to produce new glutarimide antibiotics, S-632-B1 and B2, which were isolated from the culture fluid. A taxonomic study on strain S-632 was carried out, and the taxonomic characterization demonstrated that it belonged to the species Streptomyces hygroscopicus. The strain was given the name S. hygroscopicus S-632. These antibiotics were active against Saccharomyces sp., but...

Two highly modified linear tetrapeptides, padanamides A (1) and B (2), are produced by laboratory cultures of a Streptomyces sp. obtained from a marine sediment. Padanamide B is cytotoxic to Jurkat cells, and a chemical genomics analysis using Saccharomyces cerevisiae deletion mutants suggested that padanamide A inhibits cysteine and methionine biosynthesis or that these amino acids are involve...

a-Isopropylmalate synthase, the first specific enzyme in leucine biosynthesis, was purified approximately 100-fold from extracts of Saccharomyces sp. (strain 60615), the most effective step being specific elution with the feedback inhibitor leucine from a hydroxyapatite column. In the early steps of purification, special care was taken to protect the synthase against proteolytic activities. The...

Rapid population growth resulting in industrial proliferation and urbanization has led to the rapid increase pollution of environment. Paint industries urban areas mostly channel their wastewater into streams on land, which results receiving This study aims determine impact effluent discharges from paint soils’ physicochemical properties clean-up polluted soil through monitored natural attenuat...

Shrimp waste contains protein that binds to chitin and is difficult digest by poultry, so it necessary carry out a fermentation process using Bacillus licheniformis, Lactobacillus sp., Saccharomyces cerevisiae. This study was conducted determine the Effect of fermented shrimp products resulted in optimal conversion meat protein, carcass weight, abdominal fat native chickens. The method used com...