It is well known that lactic acid bacteria need multiple nutritional requirements for growth. They require numerous amino acids and other growth factors to develop in synthetic media. In this review the amino acid requirements, the effect of L-malic acid and citric acids metabolism on these requirements and the catabolism of amino acids by lactic acid bacteria from wine are discussed, with emph...

Childhood obesity is considered a major issue because of its high prevalence and because of its severe consequences on adult health. Prevalence studies are carried out in numerous countries. Analysis of time trends and geographic comparisons are particularly useful, as they may help to identify factors promoting obesity. These studies require adequate definitions of nutritional status and stand...

The growth and biomass production by willow (Salix viminalis L.) was studied in lysimeters containing Oxford clay landfill cap soil with different amendments, bulk densities and watering regimes. Three years from planting, stem biomass in well-watered plants was least (0.28 kg plant(-1)) with high bulk density soil (1480 kg m(-3)) and no nutritional amendment but was increased 10-fold (2.53 kg ...

Diploid yeast cells switch from mitosis to meiosis when starved of essential nutrients. While G1 cyclins play a key role in initiating the mitotic cell cycle, entry into meiosis depends on Ime1, a transcriptional activator regulated by both nutritional and cell-type signals. We show here that G1 cyclins downregulate IME1 transcription and prevent the accumulation of the Ime1 protein within the ...

Livestock farming incurs large and varied environmental burdens, dominated by beef. Replacing beef with resource efficient alternatives is thus potentially beneficial, but may conflict with nutritional considerations. Here we show that protein-equivalent plant based alternatives to the beef portion of the mean American diet are readily devisible, and offer mostly improved nutritional profile co...

nutrigenomics applies genomic technologies to study how nutrients affect expression of genes. with the advent of the post genomic era and with the use of functional genomic tools, the new strategies for evaluating the effects of nutrition on production efficiency and nutrient utilization are becoming available. nutrigenomics plays an efficient role in various fields of animal health like nutrit...

introduction: enhancing the nutritional condition of teenaged girls can be the most effective and fundamental preventive measure against chronic disease in years ahead. knowing the predictive factors of behaviors is one the most efficient way of preventive programs in societies, especially in the developing countries. this study was conducted to determine the role of self– efficacy in predictin...

background: in recent decades, the prevalence of overweight and obesity in adolescents have increased in iran and other countries. this study aimed to assess the prevalence of obesity and its associated factors among high school students of karaj city, iran. methods: a total of 700 students in different age groups were selected by random sampling method. the study samples were divided into 2 gr...

conclusions the results of the current study suggest that increasing the quality of the diet calculated according to hei can reduce the risk of coming down with cataract. patients and methods this case-control study was conducted on 97 patients with cataract and 198 healthy people (as a control group) in iran. individuals were selected by the convenience sampling method and the food frequency q...