{"id":14720,"date":"2020-10-13T07:45:46","date_gmt":"2020-10-13T07:45:46","guid":{"rendered":"http:\/\/kiav.net\/?p=14720"},"modified":"2020-10-18T14:11:28","modified_gmt":"2020-10-18T14:11:28","slug":"ung-dung-tu-am-lanh-trong-cac-linh-vuc-nghien-cuu-khoa-hoc-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/kiav.net\/news\/ung-dung-tu-am-lanh-trong-cac-linh-vuc-nghien-cuu-khoa-hoc-nhu-the-nao\/","title":{"rendered":"T\u1ee7 \u1ea5m l\u1ea1nh l\u00e0 g\u00ec? \u1ee8ng d\u1ee5ng t\u1ee7 \u1ea5m l\u1ea1nh trong c\u00e1c l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u khoa h\u1ecdc nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"

S\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng cho c\u00e1c th\u00ed nghi\u1ec7m, th\u1ef1c nghi\u1ec7m khoa h\u1ecdc c\u00f3 \u00fd ngh\u0129a r\u1ea5t l\u1edbn hi\u1ec7n nay. Nh\u1ea5t l\u00e0 khi c\u00f4ng ngh\u1ec7 ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n th\u00ec c\u00e1c th\u00ed nghi\u1ec7m kh\u00f4ng ch\u1ec9 c\u1ea7n c\u00f3 s\u1ef1 ch\u00ednh x\u00e1c m\u00e0 c\u00f2n l\u00e0 s\u1ef1 hi\u1ec7u qu\u1ea3, nhanh ch\u00f3ng.<\/span> T\u1ee7 \u1ea5m l\u1ea1nh <\/b>l\u00e0 m\u1ed9t trong nh\u1eefng thi\u1ebft b\u1ecb nh\u01b0 th\u1ebf. H\u00e3y c\u00f9ng ch\u00fang t\u00f4i t\u00ecm hi\u1ec3u v\u1ec1 m\u1eabu t\u1ee7 n\u00e0y \u0111\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 ch\u00fang nh\u00e9!<\/span><\/p>\n

T\u1ee7 \u1ea5m l\u1ea1nh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ph\u00f2ng th\u00ed nghi\u1ec7m nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h2>\n

Trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 nghi\u00ean c\u1ee9u khoa h\u1ecdc hi\u1ec7n nay. M\u1ed9t trong nh\u1eefng thi\u1ebft b\u1ecb m\u00e1y m\u00f3c kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u00f3 ch\u00ednh l\u00e0 t\u1ee7 \u1ea5m l\u1ea1nh.<\/strong> T\u1ee7 \u1ea5m l\u1ea1nh<\/strong> \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb h\u1eefu hi\u1ec7u c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u00ean c\u1ee9u khoa h\u1ecdc. Ch\u00fang m\u1edf ra m\u00f4i tr\u01b0\u1eddng l\u00fd t\u01b0\u1edfng \u0111\u1ec3 nu\u00f4i c\u1ea5y vi sinh v\u00e0 nu\u00f4i c\u1ea5y t\u1ebf b\u00e0o<\/span><\/p>\n

T\u1ee7 \u1ea5m l\u1ea1nh l\u00e0 g\u00ec?<\/span><\/i><\/h3>\n

T\u1ee7 \u1ea5m l\u1ea1nh<\/b> l\u00e0 t\u1ee7 \u1ea5m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ea5t ph\u1ed5 bi\u1ebfn trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m v\u1edbi m\u1ee5c \u0111\u00edch nu\u00f4i c\u1ea5y vi sinh v\u1eadt \u1edf \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. \u0110\u1eb7c tr\u01b0ng c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y \u0111\u00f3 ch\u00ednh l\u00e0 b\u00ean c\u1ea1nh h\u1ec7 th\u1ed1ng sinh nhi\u1ec7t \u0111\u1ec3 l\u00e0m \u1ea5m m\u00f4i tr\u01b0\u1eddng. Lo\u1ea1i t\u1ee7 n\u00e0y c\u00f2n c\u00f3 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh ti\u00ean ti\u1ebfn v\u1edbi m\u1ee9c nhi\u1ec7t \u0111\u1ed9 th\u1ea5p t\u1edbi -10\u02daC. \u0110\u00e2y ch\u00ednh l\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00fd t\u01b0\u1edfng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c quy tr\u00ecnh nu\u00f4i c\u1ea5y n\u1ea5m m\u1ed1c v\u00e0 n\u1ea5m s\u1ee3i.<\/span><\/p>\n

C\u00e1c ki\u1ec3m nghi\u1ec7m nhu c\u1ea7u oxy sinh h\u1ecdc trong t\u1ee7 \u1ea5m s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u1edf m\u00f4i tr\u01b0\u1eddng nhi\u1ec7t \u0111\u1ed9 l\u00fd t\u01b0\u1edfng, duy tr\u00ec trong m\u1ee9c 20 – 25\u02daC. \u0110\u00e2y l\u00e0 \u0111\u1eb7c t\u00ednh ch\u1ec9 c\u00f3 \u1edf d\u00f2ng t\u1ee7 \u1ea5m l\u1ea1nh<\/strong>, ch\u00fang kh\u00e1c bi\u1ec7t ho\u00e0n to\u00e0n so v\u1edbi nh\u1eefng d\u00f2ng t\u1ee7 \u1ea5m vi sinh th\u00f4ng th\u01b0\u1eddng v\u1ed1n ch\u1ec9 c\u00f3 h\u1ec7 th\u1ed1ng l\u00e0m \u1ea5m. T\u1ee7 \u1ea5m l\u1ea1nh<\/strong> c\u00f3 h\u1ec7 th\u1ed1ng l\u00e0m l\u1ea1nh ri\u00eang ch\u1ea1y ho\u1ea1t \u0111\u1ed9ng theo \u0111i\u1ec1u khi\u1ec3n ri\u00eang c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. Do \u0111\u00f3, ch\u00fang ho\u00e0n to\u00e0n kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng hay ch\u1ecbu t\u00e1c \u0111\u1ed9ng b\u1edfi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/span><\/p>\n

N\u01b0\u1edbc ta v\u1ed1n l\u00e0 n\u01b0\u1edbc c\u00f3 \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu n\u00f3ng \u1ea9m thay \u0111\u1ed5i li\u00ean t\u1ee5c trong n\u0103m. \u0110i\u1ec1u n\u00e0y kh\u00f4ng th\u1ef1c s\u1ef1 l\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00fd t\u01b0\u1edfng cho c\u00e1c th\u1ef1c nghi\u1ec7m nu\u00f4i c\u1ea5y vi sinh. Do \u0111\u00f3, \u0111\u1ec3 duy tr\u00ec n\u1ec1n nhi\u1ec7t \u0111\u1ed9 l\u00fd t\u01b0\u1edfng cho c\u00e1c th\u00ed nghi\u1ec7m, vi\u1ec7c s\u1eed d\u1ee5ng <\/span>t\u1ee7 \u1ea5m l\u1ea1nh <\/b>l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u nh\u1ea5t.<\/span><\/p>\n

\u01afu nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a c\u00e1c d\u00f2ng t\u1ee7 \u1ea5m l\u1ea1nh l\u00e0 g\u00ec?<\/span><\/i><\/h3>\n

\u0110\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 thi\u1ebft k\u1ebf t\u1ee7 \u1ea5m ch\u1ea5t l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft cho c\u00e1c c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u nu\u00f4i c\u1ea5y vi sinh v\u00e0 t\u1ebf b\u00e0o. T\u1ee7 \u1ea5m l\u1ea1nh<\/strong> c\u00f3 \u01b0u \u0111i\u1ec3m \u0111\u00f3 l\u00e0 s\u1ef1 truy\u1ec1n nhi\u1ec7t nhanh ch\u00f3ng v\u00e0 v\u00f4 c\u00f9ng \u0111\u1ed3ng \u0111\u1ec1u \u0111\u1ebfn v\u1eadt ph\u1ea9m nu\u00f4i c\u1ea5y. Ch\u00ednh v\u00ec v\u1eady, ch\u00fang gi\u00fap qu\u00e1 tr\u00ecnh nu\u00f4i c\u1ea5y \u0111\u1ea1t ti\u00eau chu\u1ea9n, cho ra k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch m\u1eabu nu\u00f4i c\u1ea5y ch\u00ednh x\u00e1c v\u00e0 kh\u00e1ch quan nh\u1ea5t.\u00a0<\/span><\/p>\n

Nh\u1eefng \u1ee9ng d\u1ee5ng quan tr\u1ecdng c\u1ee7a t\u1ee7 \u1ea5m l\u1ea1nh trong l\u0129nh v\u1ef1c nghi\u00ean c\u1ee9u khoa h\u1ecdc<\/b><\/h2>\n

V\u1edbi thi\u1ebft k\u1ebf th\u00f4ng minh v\u00e0 hi\u1ec7n \u0111\u1ea1i h\u01b0\u1edbng \u0111\u1ebfn vi\u1ec7c t\u1ea1o m\u00f4i tr\u01b0\u1eddng l\u00fd t\u01b0\u1edfng nh\u1ea5t trong nu\u00f4i c\u1ea5y vi sinh, t\u1ebf b\u00e0o. <\/span>T\u1ee7 \u1ea5m l\u1ea1nh<\/b> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi nhi\u1ec1u \u1ee9ng d\u1ee5ng n\u1ed5i b\u1eadt c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn nh\u01b0:<\/span><\/p>\n