Noun:

1. an amino acid containing sulfur that is found in most proteins; oxidizes on exposure to air to form cystine

cysta膀胱, 囊, 囊肿cystn.包囊；囊肿pref.表示“囊、胞”cystauchenitis膀胱颈炎cystoneuralgia膀胱神经痛cyst of thymus胸腺囊肿Cysteine lyase半胱氨酸裂解酶cyst of spleen脾囊肿cystolithiasis膀胱石病Cystoseiraceaen.囊链藻科cyst sebaceous皮脂囊肿(粉瘤)cystathionuria丙氨酸丁氨酸硫醚尿症cystanchenitis膀胱颈炎

1. Thus, the best source for cysteine supplementation is from cysteine-rich foodstuffs.
   因此，最理想的半胱氨酸补充剂还是来自富含半胱氨酸的食品。
2. American experts pointed out that bean products contain very rich methionine which will be changed to cysteine by the function of enzyme.
   美国医学专家指出，豆制品中含有极为丰富的蛋氨酸，蛋氨酸在酶的作用下可转化为半胱氨酸。