Whey protein concentrate powders can be strongly affected by storage conditions inducing both chemical and structural modifications. In the present work, a combination of different were evaluated, leading to evaluation 6 batches that chosen in order evaluate impact following parameters: temperature, duration heat load (°C.days). each set relative humidity was maintained at 70%. To estimate thre...

In vitro integration of the polytopic, transmembrane lactose permease into membrane vesicles from Escherichia coli is demonstrated. To this end the enzyme was synthesized in a homologous, cell-free transcription-translation system. In this system, synthesis occurred in an essentially membrane-free environment leading to the formation of lactose permease aggregates, which were resistant to prote...

Lactose has different uses in the dairy, food, and pharmaceutical industries. Being aware of forms lactose their concentrations can be very helpful managing dairy product quality, properties, manufacturing efficiency. Correct measurement reporting concentration milk other products will increased importance future as more value-added are developed data used farm management decision making. shoul...

Lactose permease is an integral membrane protein that uses the cell membrane's proton gradient for import of lactose. Based on extensive biochemical data and a substrate-bound crystal structure, intermediates involved in lactose/H(+) co-transport have been suggested. Yet, the transport mechanism, especially the coupling of protonation states of essential residues and protein conformational chan...

Xinjiang province is the main camel feeding area in China with a large square, and milk from different areas have qualities. By now, there are few reports about quality of China. In this study, seven batches one batch cow were collected, contents fat, protein, lactose, total solid, nonfat solid these samples determined, as well lysozyme vitamin C. All scored compared by principal component anal...

The tendency of calcium to promote microfiltration (MF) membrane fouling is well documented, but the role of lactose has not been studied. Milk protein concentrate that is 85% protein on a dry basis (MPC85) contains less calcium and lactose than skim milk. Our objectives were to determine the effects of skim milk soluble calcium and lactose concentrations on the limiting fluxes (LF) and serum p...

parent compound. The m/e 274 showed the loss of a proton and ethylene (C-l and C-2) from m/e 303. There was a small metastable ion at m/e 248 consistent with transition 303 + 274 ([27412/ 303 = 247.8). The most prominent peak in the spectrum of N-butylurea, measured for comparison, was m/e 73 (M-43) fragmentation by loss of HNCO. All t,hese results together permit the assignment of the structur...

BACKGROUND/OBJECTIVES Breast milk is the best available food for optimum growth and development of infants and the breastfeeding rate is increasing in Korea. The purpose of this study is to measure the concentrations of macronutrients and to evaluate their changes according to lactation period in breast milk from lactating Korean women. SUBJECTS/METHODS Milk samples were obtained from 2,632 h...

The effects of kappa-casein (kappa-CN) and beta-lactoglobulin (beta-LG) loci on milk production traits (milk, fat, protein, and lactose yield, fat, protein, and lactose content) and reproductive performance (gestation length, calving interval, age at first and second calving, number of services per conception) was estimated for 278 Holstein cows in the first 2 lactations. Genotypes of kappa-CN ...

The objectives of this study were to investigate variations in the milk composition and somatic cell count (SCC) from dairy cooperatives Northern Thailand January 2017 December 2021. Milk among was also compared. dataset included monthly (total solid (TS)%, fat%, protein%, lactose%, not fat (SNF)% SCC) data 15 cooperatives, 2 private organizations, their collection centers (1,800 records) colle...