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LAKTOZA

laktozaLAKTOZA (lot. lac, lactis – shir), qandi shir, C12H22O11, karbogidrat az guruhi disakharidho. Dar shiri hayvonoti shirmak (2 – 8,5%) mavjud ast; dar gardnaychai baze rastaniho niz oshkor karda shudaast. L. moddai berang buda, se shakli kristalli dorad; az jihati optiki faol ast. Dar ob, spirti etil va piridin hal meshavad, dar efir halnashavanda ast. L.-ro dar dorusozi kor mefarmoyand.

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ZAMIN – SAYYORAI SISTEMAM OFTOBI

Sababhoi tagyiryobii faslhoi sol. Az kursi tabiatshinosi mo medonem, ki Oftob in markazi sistemai oftobii mo …