The main objective of this work is to show a fermentation influence by some associations of two lactic acid bacteria and three bifidobacteria on proteolysis and the antigenicity of sheep milk proteins. This latter freshly collected is skimmed, sterilized and inoculated by a mixed culture. The mixture is homogenized and incubated at 40°C until it is a curd. On these fermented milks previously ly...

Penelitian ini mengkaji tentang ekraksi dan karakterisasi selulosa yang diperoleh kulit pinang. Untuk menentukan kadar terdapat pada pinang dapat dilakukan melalui uji XRD, FTIR, SEM. Kulit telah dibersihkan kemudian dihidrolisis dengan konsentrasi HNO3 menggunakan variasi NaOH yaitu 1%, 2%, 3% 4% suhu 40 oC, 50 60 70 oC. Kemudian didelignifikasi Na2SO3 selama 1 jam Selulosa diuji SEM, dihitung...

Recently, xylanases have expanded their use in many processing industries, such as pulp and paper, food and textile. The production of xylanase by the fungus Penicillium sclerotiorum under submerse cultivation was investigated. Oat spelts xylan and wheat bran were the best inducers of xylanase activity. Optimal xylanase production was obtained in liquid Vogel medium, pH 6.5, at 30oC, under stat...

“Quina” (Strychnos pseudoquina A. St. Hil) is a medicinal plant species from the Brazilian Cerrado. As its seeds show dormancy, they were subjected to the treatments precooling at 5oC during 7 days, pre-heating at 40oC during 7 days, pre-soaking in sulfuric acid PA during 5 and 15 min, pre-soaking in boiling water during 5 and 15 min, pre-soaking in 100 and 200 ppm gibberellic acid during 48 h,...

Quinoa seed (Chenopodium quinoa Willd.) has obtained great interest in recent years due to its high nutritional value and its content of natural antioxidants and other phytochemicals with positive biological activity in humans. Their ability as health promoters depends strictly on the processing conditions to which the seeds are submitted. In this work, quinoa seeds were subjected to germinatio...

Lactobacillus rhamnosus, a facultative anaerobe, which produces L (+) lactic acid and ethanol under anaerobic conditions, is used in the present study. An adh mutant of Lactobacillus rhamnosus MTCC 1408, was developed by chemical mutagenesis, which could produce pure L(+) lactic acid as the only product. Batch fermentation kinetics of the wild type and the mutant strain were studied in glucose-...

Recently, the demolition of old houses and the construction of new buildings in Kathmandu valley are in the peak which in turn generates a huge amount of construction waste. This construction waste is rich source of alumino-silicate and thus used as raw material for the synthesis of geopolymer in this study. Geopolymers have been synthesized from construction waste using NaOH and Na2SiO3 as act...

The purpose of this study was to determine the effect of ultrasound treatment on the protein content and rheological properties of soymilk extracted from soybeans. Soybean slurry was exposed to ultrasound treatment then filtered. In this work, an ultrasound cleaning bath set with 35 kHz frequency and different treatment temperatures (20 and 40oC) and times (20, 40, and 60 min) was used. Results...

The aromatic compounds of Artemisia annua were extracted by supercritical carbon dioxide. Supercritical carbon dioxide extraction of volatile flavor compounds from Artemisia annua was performed at pressure 150bar and temperature 40oC. The flow rate of CO2 was 20 g/min and the flow rate of ethanol as an entrainer was 5% of CO2 used. The extraction time was 1 h. The trapped sample by cold trap 1 ...