Dzvuku kana Chena: Ndeipi Nyama Yeiyo Nguruve?

Zvemukati

• Misiyano pakati penyama tsvuku uye chena
• Shanduro yesainzi yenguruve
• Culinary kupatsanura yenguruve
• Chinokosha

Nguruve ndiyo nyama yakanyanya kudyiwa pasi (1).

Nekudaro, kunyangwe ichizivikanwa pasi rese, vanhu vazhinji havana chokwadi nezve kwayo chaiyo marongero.

Izvi zvinodaro nekuti vamwe vanozvimisikidza senyama tsvuku, nepo vamwe vachizviona kunge nyama chena.

Ichi chinyorwa chinoongorora kana nyama yenguruve chena kana tsvuku nyama.

Misiyano pakati penyama tsvuku uye chena

Musiyano mukuru pakati peruvara rutsvuku nemuchena wenyama huwandu hweiyo myoglobin inowanikwa musuru yemhuka.

Myoglobin ipuroteni mune nyama yemhasuru inosunga kune oxygen kuti igone kushandiswa kwesimba.

Mune nyama, myoglobin inova iyo huru pigment inokonzeresa ruvara rwayo, sezvo ichiburitsa yakajeka toni toni painosangana neoksijeni (, 3).

Nyama tsvuku ine yakakwira myoglobin yemukati pane chena nyama, zvinova ndizvo zvinoisa mavara avo parutivi.

Zvisinei, zvinhu zvakasiyana zvinogona kukanganisa ruvara rwe nyama, senge zera remhuka, mhando, bonde, chikafu, uye chikamu chezviitiko (3).

Semuenzaniso, kurovedza mhasuru kune yakakwira myoglobin yevasungwa nekuti inoda yakawanda okisijeni kuti ishande. Izvi zvinoreva kuti nyama inouya kubva kwavari ichave yakasviba.

Uyezve, kurongedza nekugadzirisa nzira dzinogona kutungamira mukusiyana kweruvara rwe nyama (, 3).

Iyo yakanaka yepamusoro pevara yenyama mbishi kubva kune yemombe, gwayana, nyama yenguruve, uye veal inofanira kunge iri tsvuku tsvuku, rakasviba cherry tsvuku, greyish-pink, uye pingi yepingi, zvichiteerana. Kana iri yehuku mbishi, inogona kusiyana kubva pablue-chena kusvika yero (3).

Myoglobin ipuroteni inokonzeresa kutsvuka kwenyama, uye ndicho chinhu chikuru pakuronga nyama yakatsvuka uye chena. Nyama tsvuku ine myoglobin yakawanda kupfuura nyama chena.

Shanduro yesainzi yenguruve

Sekureva kwenharaunda yesainzi uye nezviremera zvekudya, senge United States Dhipatimendi rezvekurima (USDA), nyama yenguruve inoiswa munyama tsvuku (1).

Pane zvikonzero zviviri zvakakosha zveichi chikamu.

Kutanga, nyama yenguruve ine myoglobin yakawanda kupfuura yehuku nehove. Zvakadai, inorongwa seyenyama tsvuku kunyangwe isina ruvara rwakatsvuka - uye kunyangwe ikareruka kana yabikwa.

Chechipiri, zvichipiwa kuti nguruve mhuka dzekurima, nyama yenguruve inorongwa semombe pamwe chete nemombe, gwayana, uye nyama yemombe, uye zvipfuyo zvese zvinonzi nyama tsvuku.

Nguruve ine myoglobin yakawanda kupfuura yehuku nehove. Nekudaro, vesaenzi nzanga uye vakuru vechikafu senge USDA vanozvimisikidza senyama tsvuku. Zvakare, kupihwa kusarudzwa kwenguruve semombe pamwe nezvimwe zvipfuyo, nyama yenguruve inoonekwa seyenyama tsvuku.

Culinary kupatsanura yenguruve

Zvinoenderana netsika yekubika, izwi rekuti nyama chena rinoreva nyama ine ruvara rwakachenuruka kumberi uye shure kwekubika.

Nekudaro, kutaura zvine hungwaru, nyama yenguruve inorongedzwa senyama chena.

Uyezve, mushandirapamwe wakatangwa neNational Pork Board - chirongwa chinotsigirwa neUSDA's zvekushambadzira zvekushambadzira - inogona kunge yakasimbisa chinzvimbo ichi (4).

Mushandirapamwe uyu wakatanga mukunopera kwema1980 senzira yekushambadza nyama yenguruve senyama yakaonda, uye yakave yakakurumbira neshoko, "Nguruve. Imwe nyama chena. ”

Zvisinei, ramba uchifunga kuti chinangwa chemushandirapamwe uyu ndechekuwedzera kudiwa kwevatengi kwekucheka kwakadzika kwemafuta enguruve.

Culinary tsika inoratidzira nyama yenguruve seye chena nyama nekuda kwayo yakajeka ruvara, zvese zvisati zvaitika uye mushure mekubika.

Chinokosha

Nyama chena uye tsvuku zvakasiyana muhuwandu hwayo hwemyoglobin, protein inokonzeresa ruvara rwe nyama.

Nyama tsvuku ine myoglobin yakawanda kupfuura nyama chena, uye yakakwira myoglobin inogadzira yakasviba nyama nyama.

Kunyangwe tsika yekudyira ichibata nyama yenguruve senyama chena, inyama tsvuku yesainzi, sezvo iine myoglobin yakawanda kupfuura yehuku nehove.

Pamusoro pezvo, semhuka yepurazi, nyama yenguruve inorongwa semombe, inoonekwa zvakare nyama tsvuku.

Dzimwe dzakachekwa dzakaonda nyama yenguruve dzakafanana nehuku zvine hutano, zvichitungamira kune sirogani, "Nguruve. Imwe nyama chena. ”