{"id":26469,"date":"2021-01-25T20:59:41","date_gmt":"2021-01-25T13:59:41","guid":{"rendered":"https:\/\/ttud.com.vn\/?p=26469"},"modified":"2021-01-25T20:59:45","modified_gmt":"2021-01-25T13:59:45","slug":"quy-trinh-moi-keo-dai-gap-doi-thoi-gian-bao-quan-mang-cau-dai","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/quy-trinh-moi-keo-dai-gap-doi-thoi-gian-bao-quan-mang-cau-dai\/","title":{"rendered":"Quy tr\u00ecnh m\u1edbi k\u00e9o d\u00e0i g\u1ea5p \u0111\u00f4i th\u1eddi gian b\u1ea3o qu\u1ea3n m\u00e3ng c\u1ea7u dai"},"content":{"rendered":"\n<p><strong><em>Trung t\u00e2m Nghi\u00ean c\u1ee9u v\u00e0 Ph\u00e1t tri\u1ec3n N\u00f4ng nghi\u1ec7p C\u00f4ng ngh\u1ec7 cao TPHCM \u0111\u00e3 nghi\u00ean c\u1ee9u th\u00e0nh c\u00f4ng quy tr\u00ecnh b\u1ea3o qu\u1ea3n m\u00e3ng c\u1ea7u dai (na) b\u1eb1ng dung d\u1ecbch chitosan 2%, k\u1ebft h\u1ee3p Zeolite\/Cu2+, gi\u00fap t\u0103ng th\u1eddi h\u1ea1n b\u1ea3o qu\u1ea3n l\u00ean 1,5 &#8211; 2 l\u1ea7n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p th\u00f4ng th\u01b0\u1eddng.<\/em><\/strong><\/p>\n\n\n\n<p>M\u00e3ng c\u1ea7u dai \u0111\u01b0\u1ee3c tr\u1ed3ng tr\u00ean kh\u1eafp c\u1ea3 n\u01b0\u1edbc, t\u1eadp trung nhi\u1ec1u \u1edf nhi\u1ec1u \u1edf v\u00f9ng \u0110\u00f4ng Nam B\u1ed9 v\u00e0 c\u00e1c t\u1ec9nh \u0110\u1ed3ng b\u1eb1ng s\u00f4ng C\u1eedu Long. \u0110\u00e2y c\u00f2n l\u00e0 lo\u1ea1i tr\u00e1i c\u00e2y \u0111\u1eb7c s\u1ea3n c\u1ee7a v\u00f9ng \u0111\u1ea5t T\u00e2y Ninh. Hi\u1ec7n nay, m\u00e3ng c\u1ea7u dai v\u1eabn ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c ti\u00eau th\u1ee5 t\u1ea1i th\u1ecb tr\u01b0\u1eddng trong n\u01b0\u1edbc, c\u00f2n \u00edt \u0111\u01b0\u1ee3c xu\u1ea5t kh\u1ea9u, m\u1eb7c d\u00f9 th\u1ecb tr\u01b0\u1eddng ngo\u00e0i n\u01b0\u1edbc c\u00f3 nhu c\u1ea7u. <\/p>\n\n\n\n<p>C\u00e1c c\u00f4ng ty thu mua m\u00e3ng c\u1ea7u dai \u0111\u1ec3 xu\u1ea5t kh\u1ea9u \u0111\u1ec1u g\u1eb7p kh\u00f3 kh\u0103n trong kh\u00e2u b\u1ea3o qu\u1ea3n, do lo\u1ea1i qu\u1ea3 n\u00e0y c\u00f3 \u0111\u1eb7c t\u00ednh ch\u00edn nhanh sau thu ho\u1ea1ch. N\u1ebfu ch\u1ec9 d\u00f9ng bao x\u1ed1p b\u1ea3o qu\u1ea3n tr\u01b0\u1edbc khi cho v\u00e0o th\u00f9ng carton th\u00ec kh\u00f4ng \u1ee9c ch\u1ebf \u0111\u01b0\u1ee3c ethylene n\u1ed9i sinh sinh ra t\u1eeb qu\u1ea3 m\u00e3ng c\u1ea7u dai sau thu ho\u1ea1ch n\u00ean qu\u00e1 tr\u00ecnh ch\u00edn di\u1ec5n ra r\u1ea5t nhanh (ch\u1ec9 sau 02 ng\u00e0y, tr\u00e1i b\u1eaft \u0111\u1ea7u c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng h\u01b0 h\u1ecfng), d\u1eabn \u0111\u1ebfn t\u1ef7 l\u1ec7 h\u01b0 h\u1ecfng, hao h\u1ee5t l\u1edbn.<\/p>\n\n\n\n<p>Tr\u01b0\u1edbc th\u1ef1c t\u1ebf \u0111\u00f3, nh\u00f3m t\u00e1c gi\u1ea3 Trung t\u00e2m Nghi\u00ean c\u1ee9u v\u00e0 Ph\u00e1t tri\u1ec3n N\u00f4ng nghi\u1ec7p C\u00f4ng ngh\u1ec7 cao TPHCM \u0111\u00e3 nghi\u00ean c\u1ee9u quy tr\u00ecnh b\u1ea3o qu\u1ea3n m\u00e3ng c\u1ea7u dai b\u1eb1ng dung d\u1ecbch chitosan 2%, Zeolite\/Cu2+. \u0110\u01b0\u1ee3c bi\u1ebft, Chitosan \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh c\u00f3 c\u00e1c ho\u1ea1t t\u00ednh sinh h\u1ecdc kh\u00e1c nhau nh\u01b0 kh\u00e1ng oxy h\u00f3a, gi\u1ea3m cholesterol, kh\u00e1ng khu\u1ea9n, kh\u00e1ng n\u1ea5m,&#8230; C\u00e1c ch\u1ee9c n\u0103ng n\u00e0y k\u1ebft h\u1ee3p v\u1edbi t\u00ednh kh\u00f4ng \u0111\u1ed9c, t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc cao v\u00e0 ph\u00e2n h\u1ee7y t\u1ef1 nhi\u00ean \u0111\u00e3 l\u00e0m n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t polymer c\u00f3 ti\u1ec1m n\u0103ng \u1ee9ng d\u1ee5ng l\u1edbn trong b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m, tr\u00e1i c\u00e2y t\u01b0\u01a1i,\u2026 Zeolite l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u kho\u00e1ng v\u00f4 c\u01a1 c\u00f3 th\u00e0nh ph\u1ea7n l\u00e0 aluminosilicat. Nh\u1edd c\u1ea5u tr\u00fac tinh th\u1ec3 r\u1ed7ng, Zeolit c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p ph\u1ee5 v\u00e0 ch\u1ecdn l\u1ecdc cao n\u00ean \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c nh\u01b0 s\u1ea3n xu\u1ea5t n\u01b0\u1edbc gi\u1ea3i kh\u00e1t, lo\u1ea1i b\u1ecf kim lo\u1ea1i n\u1eb7ng v\u00e0 c\u00e1c ch\u1ea5t \u0111\u1ed9c h\u1ea1i kh\u00e1c trong th\u1ef1c ph\u1ea9m b\u1ed5 sung, \u1ee9ng d\u1ee5ng bao g\u00f3i s\u1ea3n ph\u1ea9m, b\u1ea3o qu\u1ea3n n\u00f4ng s\u1ea3n,\u2026<\/p>\n\n\n\n<p>Theo quy tr\u00ecnh, m\u00e3ng c\u1ea7u sau khi thu ho\u1ea1ch \u0111\u01b0\u1ee3c r\u1eeda s\u1ea1ch r\u1ed3i x\u1eed l\u00fd b\u1eb1ng c\u00e1ch nh\u00fang v\u00e0o dung d\u1ecbch chitosan 2% trong kho\u1ea3ng 1 ph\u00fat v\u00e0 l\u00e0m r\u00e1o n\u01b0\u1edbc b\u1eb1ng qu\u1ea1t c\u00f4ng nghi\u1ec7p trong v\u00f2ng 30 ph\u00fat. Sau \u0111\u00f3, \u0111\u00f3ng g\u00f3i m\u00e3ng c\u1ea7u trong l\u01b0\u1edbi x\u1ed1p v\u00e0 x\u1ebfp v\u00e0o c\u00e1c th\u00f9ng carton \u0111\u1ec3 h\u1ea1n ch\u1ebf va ch\u1ea1m trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n. 06 g\u00f3i zeolite\/Cu2+ (5g\/g\u00f3i) \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf c\u00e1c g\u00f3c th\u00f9ng, sau \u0111\u00f3 b\u1ea3o qu\u1ea3n th\u00f9ng trong kho l\u1ea1nh \u1edf nhi\u1ec7t \u0111\u1ed9 10 \u00b1 1\u00b0C, \u0111\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed 80 \u00b1 5% (xu\u1ea5t kh\u1ea9u) ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng 30 \u00b1 2\u00b0C,\u0111\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed 80 \u00b1 5% (th\u1ecb tr\u01b0\u1eddng n\u1ed9i \u0111\u1ecba). \u0110\u1ed1i v\u1edbi m\u00e3ng c\u1ea7u b\u1ea3o qu\u1ea3n \u1edf 10<sup>o<\/sup>C th\u1eddi h\u1ea1n b\u1ea3o qu\u1ea3n k\u00e9o d\u00e0i l\u00ean \u0111\u1ebfn 12 ng\u00e0y, th\u00edch h\u1ee3p v\u1edbi vi\u1ec7c v\u1eadn chuy\u1ec3n xa. M\u00e3ng c\u1ea7u b\u1ea3o qu\u1ea3n t\u1ea1i nhi\u1ec7t \u0111\u1ed9 30<sup>o<\/sup>C ti\u00eau th\u1ee5 trong n\u01b0\u1edbc, t\u1ea1i c\u00e1c si\u00eau th\u1ecb, c\u00f3 th\u1eddi h\u1ea1n b\u1ea3o qu\u1ea3n 05 ng\u00e0y.<\/p>\n\n\n\n<p>Quy tr\u00ecnh n\u00e0y khi \u00e1p d\u1ee5ng t\u1ea1i C\u00f4ng ty TNHH MTV Nam Tr\u1ea1ng cho k\u1ebft qu\u1ea3 \u1edf 30\u00b1 2\u00b0C, \u0111\u1ed9 \u1ea9m kh\u00f4ng kh\u00ed 80 \u00b1 5%, c\u00f3 th\u1eddi h\u1ea1n b\u1ea3o qu\u1ea3n 05 ng\u00e0y, cao h\u01a1n so v\u1edbi quy tr\u00ecnh b\u1ea3o qu\u1ea3n b\u1eb1ng bao x\u1ed1p m\u00e0 c\u00f4ng ty \u0111ang \u00e1p d\u1ee5ng. Tr\u00e1i s\u00e1ng m\u00e0u, c\u00f3 m\u00f9i th\u01a1m t\u1ef1 nhi\u00ean.<\/p>\n\n\n\n<p>Theo nh\u00f3m nghi\u00ean c\u1ee9u, khi \u00e1p d\u1ee5ng c\u00f4ng ngh\u1ec7 n\u00e0y, chi ph\u00ed t\u0103ng l\u00ean 242,2 \u0111\u1ed3ng\/kg, nh\u01b0ng gi\u00fap t\u0103ng th\u1eddi gian b\u1ea3o qu\u1ea3n m\u00e3ng c\u1ea7u l\u00ean 1,5-2 l\u1ea7n so v\u1edbi b\u1ea3o qu\u1ea3n b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p th\u00f4ng th\u01b0\u1eddng. \u0110\u1eb7c bi\u1ec7t, b\u1ea3o qu\u1ea3n b\u1eb1ng chitosan k\u1ebft h\u1ee3p zeolite\/Cu2+ kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn s\u1ee9c kh\u1ecfe ng\u01b0\u1eddi ti\u00eau d\u00f9ng v\u00e0 m\u00f4i tr\u01b0\u1eddng xung quanh; \u0111\u1ed3ng th\u1eddi gi\u1ea3m th\u1ea5t tho\u00e1t sau thu ho\u1ea1ch, thu\u1eadn ti\u1ec7n cho v\u1eadn chuy\u1ec3n trong n\u01b0\u1edbc v\u00e0 xu\u1ea5t kh\u1ea9u, h\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng h\u00f3a ch\u1ea5t \u0111\u1ed9c h\u1ea1i.<\/p>\n\n\n\n<p>                                                  <strong>Ngu\u1ed3n: <\/strong>B\u00e1o Khoa h\u1ecdc v\u00e0 Ph\u00e1t tri\u1ec3n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trung t\u00e2m Nghi\u00ean c\u1ee9u v\u00e0 Ph\u00e1t tri\u1ec3n N\u00f4ng nghi\u1ec7p C\u00f4ng ngh\u1ec7 cao TPHCM \u0111\u00e3 nghi\u00ean c\u1ee9u th\u00e0nh c\u00f4ng quy tr\u00ecnh b\u1ea3o qu\u1ea3n m\u00e3ng c\u1ea7u dai (na) b\u1eb1ng dung d\u1ecbch chitosan 2%, k\u1ebft h\u1ee3p Zeolite\/Cu2+, gi\u00fap t\u0103ng th\u1eddi h\u1ea1n b\u1ea3o qu\u1ea3n l\u00ean 1,5 &#8211; 2 l\u1ea7n so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p th\u00f4ng th\u01b0\u1eddng. M\u00e3ng c\u1ea7u dai \u0111\u01b0\u1ee3c [&hellip;]<\/p>\n","protected":false},"author":24,"featured_media":26471,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-26469","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\/26469","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\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=26469"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/26469\/revisions"}],"predecessor-version":[{"id":26597,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/26469\/revisions\/26597"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/26471"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=26469"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=26469"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=26469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}