{"id":6142,"date":"2017-09-15T19:43:18","date_gmt":"2017-09-15T12:43:18","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=6142"},"modified":"2017-10-03T09:06:52","modified_gmt":"2017-10-03T02:06:52","slug":"phat-minh-quy-trinh-moi-chiet-xuat-duong-tu-go","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/phat-minh-quy-trinh-moi-chiet-xuat-duong-tu-go\/","title":{"rendered":"Ph\u00e1t minh quy tr\u00ecnh m\u1edbi chi\u1ebft xu\u1ea5t \u0111\u01b0\u1eddng t\u1eeb g\u1ed7"},"content":{"rendered":"<p><strong>M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Delaware \u0111\u00e3 ph\u00e1t minh ra m\u1ed9t quy tr\u00ecnh chi\u1ebft xu\u1ea5t \u0111\u01b0\u1eddng hi\u1ec7u qu\u1ea3 t\u1eeb v\u1ecf b\u00e0o, l\u00f5i ng\u00f4 v\u00e0 c\u00e1c ch\u1ea5t th\u1ea3i h\u1eefu c\u01a1 kh\u00e1c \u0111\u01b0\u1ee3c thu gom t\u1eeb c\u00e1c khu r\u1eebng v\u00e0 trang tr\u1ea1i. Nguy\u00ean li\u1ec7u sinh h\u1ecdc t\u00e1i t\u1ea1o n\u00e0y c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn gi\u00e1 r\u1ebb v\u00e0 b\u1ec1n v\u1eefng \u0111\u1ec3 thay th\u1ebf d\u1ea7u m\u1ecf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t h\u00e0ng t\u1ea5n h\u00e0ng h\u00f3a ti\u00eau d\u00f9ng. Theo m\u1ed9t kh\u1ea3o s\u00e1t, h\u01a1n m\u1ed9t n\u1eeda s\u1ed1 ng\u01b0\u1eddi ti\u00eau d\u00f9ng \u1edf Hoa K\u1ef3 s\u1eb5n s\u00e0ng tr\u1ea3 nhi\u1ec1u ti\u1ec1n \u0111\u1ec3 mua c\u00e1c s\u1ea3n ph\u1ea9m th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng.<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-6270\" src=\"http:\/\/ttud.com.vn\/wp-content\/uploads\/2017\/09\/15092017152600-baotran149-phatminh.jpg\" alt=\"\" width=\"452\" height=\"300\" srcset=\"https:\/\/casta.ttud.com.vn\/wp-content\/uploads\/2017\/09\/15092017152600-baotran149-phatminh.jpg 452w, https:\/\/casta.ttud.com.vn\/wp-content\/uploads\/2017\/09\/15092017152600-baotran149-phatminh-300x199.jpg 300w\" sizes=\"auto, (max-width: 452px) 100vw, 452px\" \/><\/p>\n<p>Basudeb Saha, Ph\u00f3 Gi\u00e1o s\u01b0 t\u1ea1i Trung t\u00e2m X\u00fac t\u00e1c \u0111\u1ed5i m\u1edbi n\u0103ng l\u01b0\u1ee3ng t\u1ea1i tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Delaware cho bi\u1ebft: \u0110\u1ec3 s\u1ea3n xu\u1ea5t h\u00f3a ch\u1ea5t v\u00e0 nhi\u00ean li\u1ec7u xanh h\u01a1n, ch\u00fang t\u00f4i \u0111ang nghi\u00ean c\u1ee9u v\u1eadt li\u1ec7u t\u1eeb th\u1ef1c v\u1eadt, nh\u01b0ng l\u1ea1i kh\u00f4ng mu\u1ed1n c\u1ea1nh tranh v\u1edbi s\u1ea3n xu\u1ea5t l\u01b0\u01a1ng th\u1ef1c. V\u00ec v\u1eady, thay v\u00ec l\u1ea5y ng\u00f4 v\u00e0 chi\u1ebft xu\u1ea5t \u0111\u01b0\u1eddng \u0111\u1ec3 s\u1ea3n xu\u1ea5t etanol, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng ph\u1ea7n ng\u00f4 v\u00e0 l\u00f5i \u0111\u01b0\u1ee3c b\u1ecf \u0111i sau khi thu ho\u1ea1ch ng\u00f4, c\u0169ng nh\u01b0 c\u00e1c lo\u1ea1i ch\u1ea5t th\u1ea3i kh\u00e1c nh\u01b0 v\u1ecf b\u00e0o v\u00e0 v\u1ecf tr\u1ea5u.<\/p>\n<p>Trong th\u1eadp k\u1ef7 qua d\u00f9 \u0111\u00e3 c\u00f3 s\u1ef1 chuy\u1ec3n h\u01b0\u1edbng sang s\u1eed d\u1ee5ng lo\u1ea1i ch\u1ea5t th\u1ea3i \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 sinh kh\u1ed1i ligno xenlul\u00f4 \u0111\u1ec3 t\u1ea1o ra c\u00e1c h\u00f3a ch\u1ea5t s\u1ea3n xu\u1ea5t nh\u1ef1a ph\u00e2n h\u1ee7y sinh h\u1ecdc, d\u01b0\u1ee3c ph\u1ea9m, m\u1ef9 ph\u1ea9m v\u00e0 nhi\u00ean li\u1ec7u sinh h\u1ecdc, nh\u01b0ng c\u00e1c c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t nhi\u00ean li\u1ec7u sinh h\u1ecdc l\u1ea1i g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c t\u00ecm ki\u1ebfm ngu\u1ed3n cung c\u1ea5p \u1ed5n \u0111\u1ecbnh v\u00e0 ph\u1ea3i \u0111\u01b0\u01a1ng \u0111\u1ea7u v\u1edbi v\u1ea5n \u0111\u1ec1 chi ph\u00ed x\u1eed l\u00fd cao. V\u1ecf b\u00e0o v\u00e0 l\u00f5i ng\u00f4 l\u00e0 v\u1eadt li\u1ec7u \u0111\u01a1n gi\u1ea3n v\u00e0 gi\u00e1 r\u1ebb nh\u01b0ng r\u1ea5t kh\u00f3 ph\u00e2n t\u00e1ch v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc.<\/p>\n<p>Ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u00e3 t\u00e1ch \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng t\u1eeb lignin th\u00f4ng qua m\u1ed9t quy tr\u00ecnh g\u1ed3m hai b\u01b0\u1edbc, trong \u0111\u00f3 b\u01b0\u1edbc m\u1ed9t l\u00e0 s\u1eed d\u1ee5ng h\u00f3a ch\u1ea5t m\u1ea1nh v\u00e0 c\u00e1c \u0111i\u1ec1u ki\u1ec7n ph\u1ea3n \u1ee9ng v\u00e0 b\u01b0\u1edbc hai l\u00e0 s\u1eed d\u1ee5ng enzym \u0111\u1eaft ti\u1ec1n. Quy tr\u00ecnh n\u00e0y l\u00e0m cho \u0111\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t c\u00f3 gi\u00e1 th\u00e0nh cao v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng d\u00f9 t\u00e1i t\u1ea1o, nh\u01b0ng \u00edt c\u1ea1nh tranh h\u01a1n so v\u1edbi \u0111\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng d\u1ea7u m\u1ecf.<\/p>\n<p>Tuy nhi\u00ean, quy tr\u00ecnh m\u1edbi c\u1ee7a tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Delaware ch\u1ec9 c\u00f3 m\u1ed9t b\u01b0\u1edbc v\u00e0 kh\u00f4ng \u0111\u00f2i h\u1ecfi b\u01b0\u1edbc ti\u1ec1n x\u1eed l\u00fd ri\u00eang bi\u1ec7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong c\u00e1c nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t nhi\u00ean li\u1ec7u sinh h\u1ecdc \u0111\u1ec3 ph\u00e2n h\u1ee7y lignin t\u1eeb xenlul\u00f4 polyme \u0111\u01b0\u1eddng v\u00e0 hemi xenlul\u00f4. C\u00f4ng ngh\u1ec7 n\u00e0y k\u1ebft h\u1ee3p b\u01b0\u1edbc ti\u1ec1n x\u1eed l\u00fd v\u00e0 th\u1ee7y ph\u00e2n xenlul\u00f4 v\u00e0 hemi xenlul\u00f4 v\u00e0 ho\u1ea1t \u0111\u1ed9ng trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p (85\u00b0C) v\u00e0 th\u1eddi gian ph\u1ea3n \u1ee9ng ng\u1eafn (m\u1ed9t gi\u1edd), n\u00ean ti\u00eau th\u1ee5 hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng v\u00e0 n\u01b0\u1edbc.<\/p>\n<p>\u0110i\u1ec3m c\u1ed1t l\u00f5i c\u1ee7a c\u00f4ng ngh\u1ec7 m\u1edbi l\u00e0 s\u1eed d\u1ee5ng dung d\u1ecbch mu\u1ed1i v\u00f4 c\u01a1 \u0111\u1eadm \u0111\u1eb7c v\u1edbi m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf axit kho\u00e1ng s\u1ea3n. Dung d\u1ecbch mu\u1ed1i \u0111\u1eb7c tr\u01b0ng ch\u1ec9 c\u1ea7n m\u1ed9t l\u01b0\u1ee3ng n\u01b0\u1edbc t\u1ed1i thi\u1ec3u. Dung d\u1ecbch n\u00e0y l\u00e0m n\u1edf c\u00e1c h\u1ea1t g\u1ed7 ho\u1eb7c sinh kh\u1ed1i kh\u00e1c, cho ph\u00e9p dung d\u1ecbch t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c s\u1ee3i. C\u00e1c t\u00ednh ch\u1ea5t \u0111\u1ed9c \u0111\u00e1o c\u1ee7a dung d\u1ecbch mu\u1ed1i l\u00e0m cho ph\u01b0\u01a1ng ph\u00e1p n\u00e0y tr\u1edf n\u00ean r\u1ea5t hi\u1ec7u qu\u1ea3 v\u1edbi h\u00e0m l\u01b0\u1ee3ng \u0111\u01b0\u1eddng v\u1ec1 l\u00fd thuy\u1ebft \u0111\u1ea1t 95%.<\/p>\n<p>Ngo\u00e0i ra, nh\u00f3m nghi\u00ean c\u1ee9u \u0111\u00e3 k\u1ebft h\u1ee3p quy tr\u00ecnh n\u00e0y v\u1edbi m\u1ed9t b\u01b0\u1edbc n\u1eefa \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n \u1ee9ng kh\u1eed n\u01b0\u1edbc \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i \u0111\u01b0\u1eddng th\u00e0nh c\u00e1c furan v\u00e0 cho ph\u00e9p t\u00e1i ch\u1ebf dung d\u1ecbch mu\u1ed1i. Furan l\u00e0 h\u1ee3p ch\u1ea5t r\u1ea5t linh ho\u1ea1t \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m nguy\u00ean li\u1ec7u \u0111\u1ec3 s\u1ea3n xu\u1ea5t h\u00f3a ch\u1ea5t \u0111\u1eb7c bi\u1ec7t.<\/p>\n<p style=\"text-align: right;\"><em>Ngu\u1ed3n T\u1ea1p ch\u00ed Khoa h\u1ecdc v\u00e0 C\u00f4ng ngh\u1ec7 Vi\u1ec7t Nam<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc Delaware \u0111\u00e3 ph\u00e1t minh ra m\u1ed9t quy tr\u00ecnh chi\u1ebft xu\u1ea5t \u0111\u01b0\u1eddng hi\u1ec7u qu\u1ea3 t\u1eeb v\u1ecf b\u00e0o, l\u00f5i ng\u00f4 v\u00e0 c\u00e1c ch\u1ea5t th\u1ea3i h\u1eefu c\u01a1 kh\u00e1c \u0111\u01b0\u1ee3c thu gom t\u1eeb c\u00e1c khu r\u1eebng v\u00e0 trang tr\u1ea1i. Nguy\u00ean li\u1ec7u sinh h\u1ecdc t\u00e1i t\u1ea1o n\u00e0y c\u00f3 th\u1ec3 tr\u1edf [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":6270,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-6142","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\/6142","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=6142"}],"version-history":[{"count":2,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/6142\/revisions"}],"predecessor-version":[{"id":6271,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/6142\/revisions\/6271"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/6270"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=6142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=6142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=6142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}