Sandunan Naman Naman Da Aka Daskararre
Gabatarwar samfur | Danyen kayayyaki na zuwa ne daga wuraren yanka da kamfanonin yin rajistar fitar da kayayyaki a kasar Sin.Abubuwan da ake shigo da su galibi daga Faransa, Spain, Netherlands, da sauransu. |
ƙayyadaddun bayanai | Ƙarin ƙayyadaddun bayanai, karɓi al'ada |
fasali | Rabon kitse zuwa bakin ciki shine 3:7, mai amma ba maiko ba. |
Aiwatar da tashar | Ya dace da sarrafa abinci, sarkar gidan abinci da sauran masana'antu. |
Yanayin ajiya | Cryopreservation kasa -18 ℃ |
Naman da aka daskare yana nufin naman da aka yanka, an riga an sanyaya don cire acid ɗin, daskarewa, sannan a adana shi ƙasa da -18 ° C, kuma zurfin naman yana ƙasa -6 ° C.Naman daskararre mai inganci gabaɗaya yana daskarewa a -28°C zuwa -40°C, kuma ingancin naman da ɗanɗanon ba su da bambanci da na sabo ko nama mai sanyi.
Idan aka daskare a ƙananan zafin jiki, inganci da dandano na naman za su bambanta sosai, wanda shine dalilin da ya sa yawancin mutane ke tunanin cewa daskararren nama ba shi da dadi.Koyaya, nau'ikan naman daskararre guda biyu suna da tsawon rai, don haka ana amfani da su sosai.
Tasirin ƙwayoyin cuta
1. Daban-daban biochemical halayen rage gudu a lokacin da metabolism na microbial abubuwa a low yanayin zafi, don haka girma da haifuwa na microorganisms sannu a hankali slows saukar.
2. Lokacin da yawan zafin jiki ya faɗi ƙasa da daskarewa, ruwan da ke cikin microorganisms da matsakaicin da ke kewaye yana daskarewa, wanda ke ƙara ɗanɗanowar cytoplasm, ƙara haɓakar electrolyte, canza ƙimar pH da yanayin colloidal na sel, kuma yana haifar da haɓakar sel. Kwayoyin.Raunin, waɗannan canje-canjen muhalli na ciki da na waje sune ainihin dalilin toshewa ko mutuwar ƙwayoyin cuta.
Tasirin enzymes
Ƙananan zafin jiki ba ya hana enzyme gaba ɗaya, kuma enzyme na iya ci gaba da kula da wani ɓangare na aikinsa, don haka catalysis a zahiri baya tsayawa, amma yana ci gaba a hankali.Misali, trypsin har yanzu yana da rauni a -30 ° C, kuma lipolytic enzymes na iya haifar da mai mai a -20 ° C.Gabaɗaya, ana iya rage ayyukan enzyme zuwa ƙaramin adadin a -18 ° C.Sabili da haka, ajiyar ƙananan zafin jiki na iya tsawaita lokacin adana nama.