{"id":4919,"date":"2016-05-12T07:19:43","date_gmt":"2016-05-12T00:19:43","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=4919"},"modified":"2017-10-02T07:32:31","modified_gmt":"2017-10-02T00:32:31","slug":"vat-lieu-boc-thuc-pham-an-duoc-bao-quan-trai-cay-tuoi-hon-7-ngay-ma-khong-can-tu-lanh","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/vat-lieu-boc-thuc-pham-an-duoc-bao-quan-trai-cay-tuoi-hon-7-ngay-ma-khong-can-tu-lanh\/","title":{"rendered":"V\u1eadt li\u1ec7u b\u1ecdc th\u1ef1c ph\u1ea9m \u0103n \u0111\u01b0\u1ee3c, b\u1ea3o qu\u1ea3n tr\u00e1i c\u00e2y t\u01b0\u01a1i h\u01a1n 7 ng\u00e0y m\u00e0 kh\u00f4ng c\u1ea7n t\u1ee7 l\u1ea1nh"},"content":{"rendered":"

Ch\u1eb3ng nh\u1eefng c\u00f3 th\u1ec3 \u0103n \u0111\u01b0\u1ee3c m\u00e0 lo\u1ea1i b\u1ecdc th\u1ef1c ph\u1ea9m m\u00e0 c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u1eeba ph\u00e1t tri\u1ec3n th\u00e0nh c\u00f4ng c\u00f2n c\u00f3 th\u1ec3 gi\u00fap gi\u1eef \u0111\u1ed9 t\u01b0\u01a1i c\u1ee7a th\u1ef1c ph\u1ea9m l\u00ean t\u1edbi h\u01a1n 1 tu\u1ea7n ngay \u1edf \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng t\u1ee7 l\u1ea1nh. C\u00e1c nh\u00e0 khoa h\u1ecdc tuy\u00ean b\u1ed1 \u0111\u00e2y l\u00e0 lo\u1ea1i v\u1eadt li\u1ec7u c\u1ef1c k\u1ef3 h\u1ee9a h\u1eb9n, gi\u00fap gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 s\u1eed d\u1ee5ng nh\u1ef1a trong b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m v\u1ed1n nhi\u1ec1u r\u1ee7i ro v\u00e0 kh\u00f4ng th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/strong><\/p>\n

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Nh\u1ef1a g\u1ea7n nh\u01b0 lu\u00f4n xu\u1ea5t hi\u1ec7n \u0111\u1ed3ng h\u00e0nh c\u00f9ng v\u1edbi \u0111\u01b0\u1eddng \u0111i c\u1ee7a th\u1ef1c ph\u1ea9m, t\u1eeb l\u00fac tr\u00e1i c\u00e2y \u0111\u01b0\u1ee3c thu ho\u1ea1ch t\u1ea1i n\u00f4ng tr\u1ea1i, tr\u00ean xe l\u00fac v\u1eadn chuy\u1ec3n, l\u00ean k\u1ec7 b\u00e0y b\u00e1n v\u00e0 cho t\u1edbi khi \u0111\u01b0\u1ee3c c\u1ea5t gi\u1eef trong t\u1ee7 l\u1ea1nh c\u1ee7a ch\u00fang ta. Nh\u1ef1a g\u1ea7n nh\u01b0 l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn h\u1eefu hi\u1ec7u nh\u1ea5t \u0111\u1ec3 h\u1ed7 tr\u1ee3 b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m tr\u00e1nh b\u1ecb h\u01b0 h\u1ea1i. Theo th\u1ed1ng k\u00ea c\u00f3 t\u1edbi 1 n\u1eeda l\u01b0\u1ee3ng rau c\u1ee7 qu\u1ea3 tr\u00ean th\u1ebf gi\u1edbi b\u1ecb h\u01b0 h\u1ea1i tr\u01b0\u1edbc khi con ng\u01b0\u1eddi c\u00f3 th\u1ec3 \u0103n m\u1eb7c d\u00f9 tr\u1edb tr\u00eau thay, m\u1ed9t th\u1ed1ng k\u00ea kh\u00e1c c\u0169ng ch\u1ec9 ra r\u1eb1ng n\u1ebfu v\u1edbi nhu c\u1ea7u hi\u1ec7n t\u1ea1i th\u00ec t\u1edbi n\u0103m 2050, l\u01b0\u1ee3ng nh\u1ef1a s\u1ebd c\u00f2n nhi\u1ec1u h\u01a1n c\u1ea3 c\u00e1 d\u01b0\u1edbi \u0111\u1ea1i d\u01b0\u01a1ng.<\/p>\n

May m\u1eafn thay, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 t\u00ecm ra \u0111\u01b0\u1ee3c m\u1ed9t l\u1ef1a ch\u1ecdn kh\u00e1c th\u00edch h\u1ee3p h\u01a1n nh\u1ef1a v\u00e0 \u0111\u00f3 ch\u00ednh l\u00e0: l\u1ee5a. Kh\u00f4ng ph\u1ea3i l\u00e0 lo\u1ea1i l\u1ee5a th\u00f4ng th\u01b0\u1eddng, lo\u1ea1i l\u1ee5a m\u1edbi v\u1eeba ph\u00e1t tri\u1ec3n c\u00f3 th\u1ec3 \u0103n \u0111\u01b0\u1ee3c v\u00e0 ng\u01b0\u1eddi ta s\u1ebd phun ph\u1ee7 l\u00ean th\u1ef1c ph\u1ea9m v\u1edbi th\u00e0nh ph\u1ea7n ch\u00ednh l\u00e0 fibroin – m\u1ed9t lo\u1ea1i protein h\u00f2a tan gi\u00fap t\u0103ng \u0111\u1ed9 dai cho l\u1ee5a th\u00f4ng th\u01b0\u1eddng.<\/p>\n

\u0110\u1ec3 th\u1eed kh\u1ea3 n\u0103ng b\u1ea3o v\u1ec7 th\u1ef1c ph\u1ea9m c\u1ee7a lo\u1ea1i v\u1eadt li\u1ec7u m\u1edbi, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 nh\u00fang d\u00e2u t\u00e2y v\u00e0 chu\u1ed1i v\u00e0o trong dung d\u1ecbch fibroin, sau \u0111\u00f3 phun n\u01b0\u1edbc v\u00e0o tr\u00e1i c\u00e2y trong \u0111i\u1ec1u ki\u1ec7n ch\u00e2n kh\u00f4ng v\u1edbi c\u00e1c kho\u1ea3ng th\u1eddi gian phun kh\u00e1c nhau nh\u1eb1m t\u1ea1o n\u00ean c\u00e1c l\u1edbp ph\u1ee7 c\u00f3 \u0111\u1ed9 d\u00e0y kh\u00e1c nhau cho t\u1eebng lo\u1ea1i qu\u1ea3. L\u1edbp ph\u1ee7 \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u1ea5m beta v\u00e0 c\u1ee9 c\u00e0ng nhi\u1ec1u t\u1ea5m beta th\u00ec l\u1edbp m\u00e0ng ph\u1ee7 b\u1ea3o v\u1ec7 th\u1ef1c ph\u1ea9m s\u1ebd c\u00e0ng d\u00e0y. Tuy nhi\u00ean, \u0111\u1ed9 d\u00e0y t\u1ed1i \u0111a c\u1ee7a l\u1edbp ph\u1ee7 ch\u1ec9 c\u00f3 35 micron v\u00e0 g\u1ea7n nh\u01b0 v\u00f4 h\u00ecnh v\u1edbi m\u1eaft th\u01b0\u1eddng.<\/p>\n

C\u00e1c lo\u1ea1i qu\u1ea3 sau khi tr\u00e1ng ph\u1ee7 (v\u1edbi \u0111\u1ed9 d\u00e0y c\u1ee7a c\u00e1c l\u1edbp ph\u1ee7 l\u1ea7n l\u01b0\u1ee3t l\u00e0 23% v\u00e0 58% t\u1ea5m beta) trong th\u1eed nghi\u1ec7m s\u1ebd \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n \u1edf 22 \u0111\u1ed9 C v\u00e0 \u0111\u01b0\u1ee3c \u0111\u1eb7t c\u00f9ng v\u1edbi c\u00e1c lo\u1ea1i qu\u1ea3 kh\u00e1c kh\u00f4ng \u0111\u01b0\u1ee3c tr\u00e1ng ph\u1ee7 trong v\u00f2ng 7 ng\u00e0y li\u00ean t\u1ee5c. K\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 th\u1ea5y \u1edf h\u00ecnh \u0111\u1ea7u b\u00e0i, nh\u1eefng qu\u1ea3 d\u00e2u b\u00ean tr\u00e1i kh\u00f4ng \u0111\u01b0\u1ee3c tr\u00e1ng ph\u1ee7 \u0111\u00e3 b\u1ecb h\u00e9o sau 7 ng\u00e0y, \u1edf gi\u1eefa l\u1edbp ph\u1ee7 23% h\u01a1i m\u1ea5t n\u01b0\u1edbc v\u00e0 n\u00ean ph\u1ea3i \u0111\u01b0\u1ee3c ph\u1ee7 l\u1edbp 58% t\u1ea5m beta th\u00ec g\u1ea7n nh\u01b0 c\u00f2n nguy\u00ean.<\/p>\n

C\u00e1c th\u1eed nghi\u1ec7m ti\u1ebfp theo \u0111\u00e3 ch\u1ee9ng minh th\u00eam r\u1eb1ng l\u1edbp ph\u1ee7 n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m ch\u1eadm s\u1ef1 h\u00f4 h\u1ea5p c\u1ee7a tr\u00e1i c\u00e2y. Fiorenzo G. Omenetto, ng\u01b0\u1eddi d\u1eabn \u0111\u1ea7u nghi\u00ean c\u1ee9u cho bi\u1ebft r\u1eb1ng: “C\u00e1c t\u1ea5m ph\u1ee7 beta c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb lo\u1ea1i protein \u0103n \u0111\u01b0\u1ee3c fibroin v\u00e0 n\u00f3 gi\u00fap CO2 v\u00e0 O2 kh\u00f4ng th\u1ec3 ti\u1ebfp x\u00fac v\u1edbi qu\u1ea3 d\u00e2u. Ch\u00fang t\u00f4i nh\u1eadn th\u1ea5y th\u1eddi gian ph\u00e2n h\u1ee7y c\u1ee7a tr\u00e1i c\u00e2y c\u00f3 tr\u00e1ng ph\u1ee7 l\u00e0 ch\u1eadm h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi b\u00ecnh th\u01b0\u1eddng.”<\/p>\n

T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady trong th\u1eed nghi\u1ec7m v\u1edbi chu\u1ed1i: n\u00f3 \u0111\u01b0\u1ee3c ph\u1ee7 khi c\u00f2n v\u1ecf m\u00e0u h\u01a1i xanh v\u00e0 k\u1ebft qu\u1ea3 l\u00e0 nh\u1eefng qu\u1ea3 chu\u1ed1i \u0111\u01b0\u1ee3c b\u1ecdc l\u1edbp m\u00e0ng fibroin c\u00f3 th\u1ec3 gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 t\u01b0\u01a1i h\u01a1n so v\u1edbi kh\u00f4ng b\u1ecdc (th\u1ec3 hi\u1ec7n qua c\u00e1c m\u1ea3ng \u0111en tr\u00ean v\u1ecf chu\u1ed1i). Khi ti\u1ebfn h\u00e0nh c\u00e1c th\u1eed nghi\u1ec7m ki\u1ec3m ch\u1ee9ng \u0111\u1ed9 t\u01b0\u01a1i c\u1ee7a chu\u1ed1i, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 d\u00f9ng qu\u1ea3 t\u1ea1 200 gram v\u00e0 k\u1ebft qu\u1ea3, l\u1edbp ph\u1ee7 \u0111\u00e3 gi\u00fap cho th\u1ecbt qu\u1ea3 chu\u1ed1i v\u1eabn gi\u1eef gi\u1eef \u0111\u01b0\u1ee3c \u0111\u1ed9 c\u1ee9ng h\u01a1n so v\u1edbi kh\u00f4ng d\u00f9ng.<\/p>\n

M\u1eb7c d\u00f9 k\u1ebft qu\u1ea3 tr\u00ean l\u00e0 \u0111\u1ea7y h\u1ee9a h\u1eb9n nh\u01b0ng c\u00f2n m\u1ed9t \u0111i\u1ec3m quan tr\u1ecdng m\u00e0 c\u00e1c nh\u00e0 khoa h\u1ecdc v\u1eabn ch\u01b0a \u0111\u1ec1 c\u1eadp t\u1edbi ch\u00ednh l\u00e0 li\u1ec7u l\u1edbp ph\u1ee7 c\u00f3 \u1ea3nh h\u01b0\u1edfng t\u1edbi m\u00f9i v\u1ecb c\u1ee7a lo\u1ea1i th\u1ef1c ph\u1ea9m hay kh\u00f4ng. M\u1eb7c d\u00f9 ch\u01b0a c\u00f3 th\u1eed nghi\u1ec7m nh\u01b0ng h\u1ecd tuy\u00ean b\u1ed1 r\u1eb1ng tr\u00ean l\u00fd thuy\u1ebft th\u00ec “fibroin l\u00e0 kh\u00f4ng m\u00f9i kh\u00f4ng v\u1ecb v\u00e0 ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111\u00f3ng g\u00f3i v\u00e0 ph\u1ee7 b\u1ea3o v\u1ec7 th\u1ef1c ph\u1ea9m.” M\u1eb7c kh\u00e1c, h\u1ecd c\u0169ng tuy\u00ean b\u1ed1 r\u1eb1ng lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y ph\u00f9 h\u1ee3p c\u00e1c ti\u00eau chu\u1ea9n c\u1ee7a t\u1ed5 ch\u1ee9c y t\u1ebf th\u1ebf gi\u1edbi v\u1ec1 an to\u00e0n th\u1ee5c ph\u1ea9m, kh\u00f4ng \u0111\u1ed9c v\u00e0 ho\u00e0n to\u00e0n \u0103n \u0111\u01b0\u1ee3c.<\/p>\n

Ngo\u00e0i l\u00e0m r\u00f5 nh\u1eefng th\u1eafc m\u1eafc v\u1ec1 m\u00f9i v\u1ecb th\u00ec s\u1eafp t\u1edbi c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f2n c\u1ea7n ph\u1ea3i t\u00ecm c\u00e1ch t\u1ed1i thi\u1ec3u h\u00f3a chi ph\u00ed s\u1ea3n xu\u1ea5t, \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh tr\u00e1ng ph\u1ee7 \u0111\u1ec3 c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng tr\u00ean quy m\u00f4 c\u00f4ng nghi\u1ec7p. V\u00e0 hy v\u1ecdng r\u1eb1ng kh\u00f4ng ch\u1ec9 \u00e1p d\u1ee5ng t\u1ea1i c\u00e1c nh\u00e0 m\u00e1y, c\u00e1c n\u00f4ng tr\u1ea1i m\u00e0 bi\u1ebft \u0111\u00e2u, ch\u00fang ta c\u00f2n c\u00f3 m\u1ed9t thi\u1ebft b\u1ecb c\u1ea7m tay, cho ph\u00e9p c\u00f3 th\u1ec3 b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m n\u00e0o m\u00e0 ch\u00fang ta mu\u1ed1n m\u1ed9t c\u00e1c d\u1ec5 d\u00e0ng ngay \u1edf nh\u00e0. Th\u1eadt tuy\u1ec7t v\u1eddi.<\/p>\n

Tham kh\u1ea3o Nature, SA\u200b<\/em><\/p>\n

Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Ch\u1eb3ng nh\u1eefng c\u00f3 th\u1ec3 \u0103n \u0111\u01b0\u1ee3c m\u00e0 lo\u1ea1i b\u1ecdc th\u1ef1c ph\u1ea9m m\u00e0 c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u1eeba ph\u00e1t tri\u1ec3n th\u00e0nh c\u00f4ng c\u00f2n c\u00f3 th\u1ec3 gi\u00fap gi\u1eef \u0111\u1ed9 t\u01b0\u01a1i c\u1ee7a th\u1ef1c ph\u1ea9m l\u00ean t\u1edbi h\u01a1n 1 tu\u1ea7n ngay \u1edf \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng m\u00e0 kh\u00f4ng c\u1ea7n d\u00f9ng t\u1ee7 l\u1ea1nh. C\u00e1c nh\u00e0 khoa h\u1ecdc tuy\u00ean b\u1ed1 \u0111\u00e2y […]<\/p>\n","protected":false},"author":17,"featured_media":4929,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-4919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=4919"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4919\/revisions"}],"predecessor-version":[{"id":4931,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/4919\/revisions\/4931"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/4929"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=4919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=4919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=4919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}