{"id":1293,"date":"2026-07-08T17:07:06","date_gmt":"2026-07-08T09:07:06","guid":{"rendered":"https:\/\/www.daoanchemical.com\/?p=1293"},"modified":"2026-07-08T17:07:06","modified_gmt":"2026-07-08T09:07:06","slug":"zinc-oxide-in-food-packaging","status":"publish","type":"post","link":"https:\/\/www.daoanchemical.com\/vi\/zinc-oxide-in-food-packaging\/","title":{"rendered":"K\u1ebdm Oxit trong Bao b\u00ec Th\u1ef1c ph\u1ea9m"},"content":{"rendered":"

Do th\u1ef1c ph\u1ea9m ch\u1ee9a l\u01b0\u1ee3ng l\u1edbn \u0111\u1ed9 \u1ea9m, carbohydrate v\u00e0 c\u00e1c ch\u1ea5t kh\u00e1c, ch\u00fang d\u1ec5 b\u1ecb h\u01b0 h\u1ecfng trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m nh\u1ea5t \u0111\u1ecbnh, \u0111\u1ed3ng th\u1eddi t\u1ea1o m\u00f4i tr\u01b0\u1eddng th\u00edch h\u1ee3p cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi sinh v\u1eadt. S\u1ef1 nhi\u1ec5m b\u1ea9n do vi sinh v\u1eadt trong th\u1ef1c ph\u1ea9m th\u01b0\u1eddng x\u1ea3y ra trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i, v\u1eadn chuy\u1ec3n v\u00e0 b\u1ea3o qu\u1ea3n. Bao b\u00ec nh\u1ef1a t\u1eeb l\u00e2u \u0111\u00e3 th\u1ed1ng tr\u1ecb th\u1ecb tr\u01b0\u1eddng nh\u1edd \u01b0u \u0111i\u1ec3m nh\u1eb9, d\u1ec5 t\u1ea1o h\u00ecnh v\u00e0 chi ph\u00ed th\u1ea5p. Tuy nhi\u00ean, c\u00e1c lo\u1ea1i nh\u1ef1a th\u00f4ng d\u1ee5ng truy\u1ec1n th\u1ed1ng nh\u01b0 polyethylene v\u00e0 polypropylene l\u1ea1i c\u00f3 \u0111\u1eb7c t\u00ednh kh\u00e1ng khu\u1ea9n k\u00e9m, kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n y\u1ebfu, ch\u1ecbu \u0111\u01b0\u1ee3c th\u1eddi ti\u1ebft k\u00e9m v\u00e0 kh\u00f3 ph\u00e2n h\u1ee7y sinh h\u1ecdc. Nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m n\u00e0y d\u1ec5 d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng v\u00e0 l\u00e3ng ph\u00ed s\u1ea3n ph\u1ea9m, \u0111\u1ed3ng th\u1eddi g\u00f3p ph\u1ea7n g\u00e2y ra \u201c\u00f4 nhi\u1ec5m tr\u1eafng\u201d. Theo s\u1ed1 li\u1ec7u ng\u00e0nh, t\u1ef7 l\u1ec7 th\u1ea5t tho\u00e1t s\u1ea3n ph\u1ea9m do nhi\u1ec5m vi sinh v\u1eadt v\u00e0 h\u01b0 h\u1ecfng oxy h\u00f3a trong bao b\u00ec th\u1ef1c ph\u1ea9m v\u01b0\u1ee3t qu\u00e1 15%, v\u00e0 c\u00e1c bao b\u00ec b\u1ea3o v\u1ec7 truy\u1ec1n th\u1ed1ng kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u b\u1ea3o qu\u1ea3n v\u00e0 v\u1eadn chuy\u1ec3n d\u00e0i h\u1ea1n cho c\u00e1c s\u1ea3n ph\u1ea9m cao c\u1ea5p. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u bao b\u00ec th\u1ef1c ph\u1ea9m kh\u00e1ng khu\u1ea9n c\u00f3 th\u1ec3 gi\u00fap ki\u1ec1m ch\u1ebf s\u1ef1 nhi\u1ec5m b\u1ea9n do vi sinh v\u1eadt \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh.<\/p>\n

\u00d4x\u00edt k\u1ebdm<\/a><\/span><\/strong> l\u00e0 m\u1ed9t lo\u1ea1i nano v\u00f4 c\u01a1 \u0111a ch\u1ee9c n\u0103ng \u0111i\u1ec3n h\u00ecnh, k\u1ebft h\u1ee3p gi\u1eefa t\u0103ng c\u01b0\u1eddng c\u1ea5u tr\u00fac v\u1edbi c\u00e1c t\u00ednh n\u0103ng \u0111a ch\u1ee9c n\u0103ng. N\u00f3 c\u0169ng th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch sinh h\u1ecdc tuy\u1ec7t v\u1eddi v\u00e0 kh\u00f4ng \u0111\u1ed9c h\u1ea1i \u0111\u1ed1i v\u1edbi sinh v\u1eadt s\u1ed1ng, \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n an to\u00e0n cho v\u1eadt li\u1ec7u ti\u1ebfp x\u00fac th\u1ef1c ph\u1ea9m v\u00e0 bao b\u00ec d\u01b0\u1ee3c ph\u1ea9m. Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, b\u1eb1ng c\u00e1ch bi\u1ebfn \u0111\u1ed5i t\u1ed5ng h\u1ee3p nano k\u1ebdm oxit v\u1edbi c\u00e1c ma tr\u1eadn polymer, ng\u01b0\u1eddi ta \u0111\u00e3 c\u00f3 th\u1ec3 \u0111\u1ed3ng th\u1eddi n\u00e2ng cao kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n, t\u00ednh kh\u00e1ng khu\u1ea9n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u00e3o h\u00f3a c\u1ee7a v\u1eadt li\u1ec7u bao b\u00ec.<\/p>\n

\"Zinc
K\u1ebdm Oxit<\/figcaption><\/figure>\n

Nano k\u1ebdm oxit s\u1edf h\u1eefu ho\u1ea1t t\u00ednh kh\u00e1ng khu\u1ea9n ph\u1ed5 r\u1ed9ng v\u00e0 c\u00f3 t\u00e1c d\u1ee5ng \u1ee9c ch\u1ebf, ti\u00eau di\u1ec7t m\u1ea1nh m\u1ebd c\u00e1c m\u1ea7m b\u1ec7nh th\u01b0\u1eddng g\u1eb7p trong th\u1ef1c ph\u1ea9m v\u00e0 m\u00f4i tr\u01b0\u1eddng nh\u01b0 Escherichia coli, Staphylococcus aureus v\u00e0 n\u1ea5m m\u1ed1c, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh th\u00e0nh ph\u1ea7n ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i c\u1ee7a bao b\u00ec ho\u1ea1t t\u00ednh. C\u01a1 ch\u1ebf kh\u00e1ng khu\u1ea9n c\u1ee7a n\u00f3 ch\u1ee7 y\u1ebfu bao g\u1ed3m ba t\u00e1c \u0111\u1ed9ng: Th\u1ee9 nh\u1ea5t, hi\u1ec7u \u1ee9ng k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c h\u1ea1t nano cho ph\u00e9p ch\u00fang x\u00e2m nh\u1eadp v\u00e0o m\u00e0ng t\u1ebf b\u00e0o vi sinh v\u1eadt, l\u00e0m ph\u00e1 v\u1ee1 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a c\u1ea5u tr\u00fac t\u1ebf b\u00e0o; th\u1ee9 hai, d\u01b0\u1edbi \u00e1nh s\u00e1ng ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n \u1ea9m, k\u1ebdm oxit t\u1ea1o ra c\u00e1c lo\u1ea1i oxy ph\u1ea3n \u1ee9ng nh\u01b0 g\u1ed1c hydroxyl v\u00e0 anion superoxide, ch\u00fang oxy h\u00f3a v\u00e0 ph\u00e2n h\u1ee7y protein v\u00e0 axit nucleic c\u1ee7a vi sinh v\u1eadt, t\u1eeb \u0111\u00f3 ng\u0103n c\u1ea3n s\u1ef1 sinh s\u1ea3n c\u1ee7a vi khu\u1ea9n; th\u1ee9 ba, ion k\u1ebdm gi\u1ea3i ph\u00f3ng ch\u1eadm s\u1ebd can thi\u1ec7p v\u00e0o h\u1ec7 enzyme c\u1ee7a vi sinh v\u1eadt, ch\u1eb7n \u0111\u1ee9ng c\u00e1c con \u0111\u01b0\u1eddng sinh s\u1ea3n c\u1ee7a vi khu\u1ea9n. So v\u1edbi c\u00e1c ch\u1ea5t \u0111\u1ed9n kh\u00e1ng khu\u1ea9n d\u1ef1a tr\u00ean b\u1ea1c, k\u1ebdm oxit c\u00f3 gi\u00e1 th\u00e0nh th\u1ea5p h\u01a1n, kh\u00f4ng g\u00e2y kh\u00e1ng thu\u1ed1c v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c qu\u00e1 tr\u00ecnh x\u1eed l\u00fd \u1edf nhi\u1ec7t \u0111\u1ed9 cao, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c quy tr\u00ecnh t\u1ea1o h\u00ecnh nhi\u1ec7t \u0111\u1ed9 cao d\u00f9ng trong m\u00e0ng bao b\u00ec v\u00e0 l\u1edbp ph\u1ee7, \u0111\u1ed3ng th\u1eddi kh\u00f4ng g\u00e2y nguy c\u01a1 v\u1ec1 an to\u00e0n hay \u00f4 nhi\u1ec5m cho s\u1ea3n ph\u1ea9m b\u00ean trong.<\/p>\n

Kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n oxy v\u00e0 h\u01a1i n\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u bao b\u00ec l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t quy\u1ebft \u0111\u1ecbnh th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng c\u1ee7a s\u1ea3n ph\u1ea9m b\u00ean trong. C\u00e1c h\u1ea1t nano k\u1ebdm oxit c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh m\u1ed9t c\u1ea5u tr\u00fac ng\u0103n ch\u1eb7n d\u00e0y \u0111\u1eb7c d\u1ea1ng l\u01b0\u1edbi trong ma tr\u1eadn polymer, k\u00e9o d\u00e0i qu\u00e3ng \u0111\u01b0\u1eddng khu\u1ebfch t\u00e1n c\u1ee7a c\u00e1c ph\u00e2n t\u1eed kh\u00ed, l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 h\u1ec7 s\u1ed1 th\u1ea9m th\u1ea5u kh\u00ed v\u00e0 h\u01a1i n\u01b0\u1edbc c\u1ee7a m\u00e0ng bao b\u00ec, t\u1eeb \u0111\u00f3 ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 qu\u00e1 tr\u00ecnh oxy h\u00f3a v\u00e0 h\u01b0 h\u1ecfng do \u0111\u1ed9 \u1ea9m g\u00e2y ra cho s\u1ea3n ph\u1ea9m b\u00ean trong. \u0110\u1ed3ng th\u1eddi, k\u1ebdm oxit c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV tuy\u1ec7t v\u1eddi, h\u1ea5p th\u1ee5 b\u1ee9c x\u1ea1 c\u1ef1c t\u00edm trong d\u1ea3i b\u01b0\u1edbc s\u00f3ng t\u1eeb 200\u2013400 nm. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y quang h\u1ecdc c\u1ee7a c\u00e1c chu\u1ed7i polymer do b\u1ee9c x\u1ea1 UV g\u00e2y ra, gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng ch\u1ecbu th\u1eddi ti\u1ebft v\u00e0 ch\u1ed1ng l\u00e3o h\u00f3a c\u1ee7a v\u1eadt li\u1ec7u bao b\u00ec. N\u00f3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c c\u00e1c v\u1ea5n \u0111\u1ec1 gi\u00f2n g\u00e3y do ph\u01a1i n\u1eafng l\u00e2u ng\u00e0y v\u00e0 h\u01b0 h\u1ecfng do oxy h\u00f3a khi \u00e1nh s\u00e1ng xuy\u00ean qua trong c\u00e1c bao b\u00ec truy\u1ec1n th\u1ed1ng, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng v\u1eadn chuy\u1ec3n ngo\u00e0i tr\u1eddi v\u00e0 b\u1ea3o qu\u1ea3n d\u00e0i h\u1ea1n.<\/p>\n

Tr\u00e1i c\u00e2y t\u01b0\u01a1i, rau c\u1ee7, th\u1ecbt v\u00e0 h\u1ea3i s\u1ea3n r\u1ea5t d\u1ec5 b\u1ecb h\u01b0 h\u1ecfng do s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi sinh v\u1eadt v\u00e0 c\u00e1c ph\u1ea3n \u1ee9ng oxy h\u00f3a; bao b\u00ec th\u1ee5 \u0111\u1ed9ng truy\u1ec1n th\u1ed1ng c\u00f3 th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng ng\u1eafn v\u00e0 t\u1ef7 l\u1ec7 l\u00e3ng ph\u00ed cao. Bao b\u00ec ho\u1ea1t t\u00ednh \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn b\u1eb1ng k\u1ebdm oxit \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng gi\u1eef t\u01b0\u01a1i l\u00e2u d\u00e0i nh\u1edd t\u00ednh n\u0103ng kh\u00e1ng khu\u1ea9n ch\u1ee7 \u0111\u1ed9ng, kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n oxy v\u00e0 h\u01a1i n\u01b0\u1edbc, c\u00f9ng v\u1edbi kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV. D\u1eef li\u1ec7u nghi\u00ean c\u1ee9u cho th\u1ea5y qu\u1ea3 vi\u1ec7t qu\u1ea5t \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i trong bao b\u00ec sinh h\u1ecdc t\u1ed5ng h\u1ee3p v\u1edbi k\u1ebdm oxit c\u00f3 th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng d\u00e0i h\u01a1n 29,1%, trong khi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi sinh v\u1eadt trong th\u1ecbt heo v\u00e0 c\u00e1c lo\u1ea1i th\u1ecbt t\u01b0\u01a1i gi\u1ea3m \u0111\u00e1ng k\u1ec3, gi\u00fap k\u00e9o d\u00e0i th\u1eddi gian b\u1ea3o qu\u1ea3n c\u1ee7a s\u1ea3n ph\u1ea9m t\u01b0\u01a1i. \u0110\u1ed3ng th\u1eddi, lo\u1ea1i bao b\u00ec n\u00e0y kh\u00f4ng ch\u1ee9a d\u01b0 l\u01b0\u1ee3ng ch\u1ea5t b\u1ea3o qu\u1ea3n h\u00f3a h\u1ecdc, mang l\u1ea1i \u0111\u1ed9 an to\u00e0n cao h\u01a1n v\u00e0 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u th\u1ecb tr\u01b0\u1eddng v\u1ec1 b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m t\u01b0\u01a1i th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/p>\n

V\u1edbi nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng v\u1ec1 bao b\u00ec th\u00f4ng minh v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng, bao b\u00ec ch\u1ee9c n\u0103ng \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn b\u1eb1ng k\u1ebdm oxit s\u1ebd ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n v\u00e0 n\u00e2ng c\u1ea5p, th\u00fac \u0111\u1ea9y s\u1ef1 \u0111\u1ed5i m\u1edbi v\u00e0 ph\u00e1t tri\u1ec3n trong ng\u00e0nh c\u00f4ng nghi\u1ec7p bao b\u00ec.<\/p>","protected":false},"excerpt":{"rendered":"

[QWEN_MT_ITEM_1]Do th\u1ef1c ph\u1ea9m ch\u1ee9a l\u01b0\u1ee3ng l\u1edbn \u0111\u1ed9 \u1ea9m, carbohydrate v\u00e0 c\u00e1c ch\u1ea5t kh\u00e1c, ch\u00fang d\u1ec5 b\u1ecb h\u01b0 h\u1ecfng trong nh\u1eefng \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111\u1ed9 \u1ea9m nh\u1ea5t \u0111\u1ecbnh, \u0111\u1ed3ng th\u1eddi c\u0169ng t\u1ea1o m\u00f4i tr\u01b0\u1eddng v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u00edch h\u1ee3p cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a vi sinh v\u1eadt. \u00d4 nhi\u1ec5m vi sinh v\u1eadt trong th\u1ef1c ph\u1ea9m th\u01b0\u1eddng x\u1ea3y ra nh\u1ea5t trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i, v\u1eadn chuy\u1ec3n v\u00e0 b\u1ea3o qu\u1ea3n. Bao b\u00ec nh\u1ef1a t\u1eeb l\u00e2u \u0111\u00e3 th\u1ed1ng tr\u1ecb th\u1ecb tr\u01b0\u1eddng nh\u1edd \u0111\u1eb7c t\u00ednh [\u2026]<\/p>","protected":false},"author":1,"featured_media":1295,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1293","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-overview"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/posts\/1293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/comments?post=1293"}],"version-history":[{"count":0,"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/posts\/1293\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/media\/1295"}],"wp:attachment":[{"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/media?parent=1293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/categories?post=1293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.daoanchemical.com\/vi\/wp-json\/wp\/v2\/tags?post=1293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}