食品专业英语.pptxVIP

Lesson 3 : AMINO ACIDS 2 Food English Contents Exercises Text New words Questions Homework 3 Food English 1 Which nutrients exist in food? Protein , Carbohydrate, Lipids, Water, Vitamins, Minerals Dietary fiber (DF) ANSWER is : 4 Food English carbon 2 Which elements include in protein? hydrogen oxygen nitrogen Occasionally: sulphur 5 Food English How many kinds of amino acids in protein? How many kinds of essential amino acids in protein? They are ??? 20 8+1 6 Food English New words 1. amino- 氨基的 amino group 氨基 -NH2 amino nitrogen 氨基态氮 amino acid 7 Food English -yl 基 acyl 酰基 acetyl 乙酰基 methyl 甲基 ethyl 乙基 propyl 丙基 carboxyl 羧基 carbonyl 羰基 group 基团 8 Food English EXERSICES aminoacylase 氨基酰化酶 peptidase 肽酶 carboxymethyl- 羧甲基 ethyl alcohol 乙醇 tricarboxylic acid cycle 9 Food English meta- 变化, 代谢 metabolic adj. 代谢作用的,新陈代谢的 metabolic rate 代谢率 metabolic activity 代谢能力 metabolic balance 代谢平衡 metabolite n. 代谢(产)物 metabolism n. 新陈代谢 metabolize v. 使代谢,使同化 metabolizable adj. 可代谢的 10 Food English 2)New words precursor n. 前体；先驱 genus n. 种类、属 genera pl. isolates n. 种群 mutant n. 突变异种 substrate n. 底物 ant. 终产物： end products 11 Food English excrete vt. 排泄；分泌 feedback 反馈 feedback inhibition 反馈抑制 12 Food English Amino Acid Neutral Nonpolar Amino Acids Glycine [glaisi:n] Gly G Alanine [ælə ni:n] Ala A Valine [vali:n] Val V Leucine [lu:si:n, -sin] Leu L Isoleucine [aisəu′lu:si:n] Ile I Phenylalanine [ֽfenəl΄æləni:n] Phe P Tryptophan [΄triptəfæn] Try W Methionine [me΄θai əni:n] Met M Cysteine [΄sistii:n] Cys C Proline [΄prəuli:n] Pro P 13 Food English Neutral polar Amino Acids Serine[΄seri:n] Ser S Threonine[΄ θri:ə ni:n] Thr T Tyrosine [΄tirəsi:n] Tyr Y Asparagine[æs`pərædзi:n] Asn N Glutamine [΄glu:təmi:n] Gln Q Acidic A.A Aspartic acid Asp D Glutamic acid Glu E Basic A.A Lysine [΄laisi:n] Lys L Arginine [΄a:dзini(:)n] Arg R Histidine [΄histidi:n, -