TAILIEUCHUNG - Tự điển Food Science, Technology And Nutrition - Vần D

Tham khảo tài liệu 'tự điển food science, technology and nutrition - vần d', nông - lâm - ngư, nông nghiệp phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 144 cytochromes HAEM-containing proteins. Some react with oxygen directly others are intermediates in the oxidation of reduced coenzymes. Unlike haemoglobin the iron in the haem of cytochromes undergoes oxidation and reduction. cytochromes P450 A family of cytochromes involved in the detoxication system of the body see phase i metabolism . They act on a wide variety of potentially toxic compounds both endogenous metabolites and foreign compounds xenobiotics rendering them more water-soluble and more readily conjugated for excretion in the urine. The CYP26 group of cytochromes P450 are specific for retinoic acid leading to a variety of metabolites that may be physiologically active especially in cell differentiation including 4-hydroxy- 4-oxo- 5 6-epoxy- and 18-hydroxy-retinoic acid. cytokines A number of proteins secreted by cells in response to various stimuli that act to regulate proliferation and differentiation immune and inflammatory responses etc. Cytokines produced by lymphocytes are sometimes known as lymphokines those from monocytes as monokines those secreted by adipose tissue as adipokines or adipocytokines. cytokinins Plant hormones derived from isopentenyl adenosine produced by root tips seed embryos developing fruits and buds they stimulate cell division cytokinesis and regulate development of the plant. See also auxins. cytosine One of the pyrimidine bases of nucleic acids. D D- L- and DL- Prefixes to chemical names for compounds that have a centre of asymmetry in the molecule and which can therefore have two forms. Most naturally occurring sugars have the D-conformation apart from a few microbial proteins and some invertebrate peptides all the naturally occurring amino acids have the l-configuration. Chemical synthesis yields a mixture of the d- and L-isomers the racemic mixture generally shown as dl-. See also isomers optical activity r- and s-. d- and l- An obsolete way of indicating dextrorotatory and laevorotatory optical activity now replaced .

• Nông nghiệp
• từ điển dinh dưỡng
• từ điển thực phẩm
• food science
• công nghệ thực phẩm
• thức ăn cho người và gia súc
• cá nước ngọt
• nuôi trồng thủy sản
• dinh dưỡng cho tôm cá
• kháng sinh của Edwardsiella tarda
• FAO
• từ điển thuật ngữ nuôi trồng thủy sản
• cẩm nang dinh dưỡng
• cẩm nang sức khỏe
• chăm sóc sức khỏe
• bách khoa toàn thư
• từ điển nông nghiệp tiếng anh