{"id":9866,"date":"2012-08-15T02:38:12","date_gmt":"2012-08-14T19:38:12","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/2012\/08\/thong-tin-ve-luan-an-tien-si-cua-ncs-ta-thi-phuong-hoa\/"},"modified":"2013-10-06T09:02:49","modified_gmt":"2013-10-06T02:02:49","slug":"thong-tin-ve-luan-an-tien-si-cua-ncs-ta-thi-phuong-hoa","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/thong-tin-ve-luan-an-tien-si-cua-ncs-ta-thi-phuong-hoa\/","title":{"rendered":"Th\u00f4ng tin v\u1ec1 lu\u1eadn \u00e1n Ti\u1ebfn s\u0129 c\u1ee7a NCS T\u1ea1 Th\u1ecb Ph\u01b0\u01a1ng Hoa"},"content":{"rendered":"

T\u00ean lu\u1eadn \u00e1n: <\/strong>Nghi\u00ean c\u1ee9u n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 Tr\u00e1m tr\u1eafng (Canarium album <\/em>Lour. Raeush) <\/em>b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh <\/p>\n

Chuy\u00ean ng\u00e0nh:<\/strong> C\u00f4ng ngh\u1ec7 G\u1ed7, Gi\u1ea5y; M\u00e3 s\u1ed1: 62 52 24 05 <\/p>\n

H\u1ecd v\u00e0 t\u00ean nghi\u00ean c\u1ee9u sinh:<\/strong> T\u1ea1 Th\u1ecb Ph\u01b0\u01a1ng Hoa <\/p>\n

H\u1ecd v\u00e0 t\u00ean c\u00e1n b\u1ed9 h\u01b0\u1edbng d\u1eabn:<\/strong> – PGS.TS. Ph\u1ea1m V\u0103n Ch\u01b0\u01a1ng <\/p>\n

– PGS.TS. Ho\u00e0ng H\u1eefu Nguy\u00ean <\/p>\n

T\u00ean c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o:<\/strong> Vi\u1ec7n Khoa h\u1ecdc L\u00e2m Nghi\u1ec7p Vi\u1ec7t Nam <\/p>\n

T\u00d3M T\u1eaeT NH\u1eeeNG K\u1ebeT LU\u1eacN M\u1edaI C\u1ee6A LU\u1eacN \u00c1N:<\/strong> <\/p>\n

– X\u00e1c \u0111\u1ecbnh \u1ea3nh h\u01b0\u1edfng c\u1ee7a x\u1eed l\u00fd tr\u01b0\u1edbc (lu\u1ed9c g\u1ed7 trong n\u01b0\u1edbc \u1edf 700<\/sup>C) \u0111\u1ebfn kh\u1ea3 n\u0103ng th\u1ea5m dung d\u1ecbch h\u00f3a ch\u1ea5t dimethylol dihydroxyethylene urea (DMDHEU), t\u00ednh ch\u1ea5t c\u01a1 l\u00fd v\u00e0 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a g\u1ed7 Tr\u00e1m tr\u1eafng; <\/p>\n

– Ph\u01b0\u01a1ng tr\u00ecnh h\u1ed3i quyth\u1ec3 hi\u1ec7n m\u1ed1i quan h\u1ec7 gi\u1eefa t\u1ef7 l\u1ec7 ch\u1ea5t x\u00fac t\u00e1c MgCl2<\/sub>.6H2<\/sub>O h\u00f3a ch\u1ea5t DMDHEU (x1<\/sub>), th\u1eddi gian x\u1eed l\u00fd nhi\u1ec7t \u1edf 1200<\/sup>C (x2<\/sub>) v\u00e0 \u0111\u1ed9 t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng (l\u01b0\u1ee3ng h\u00f3a ch\u1ea5t trong g\u1ed7) sau r\u1eeda tr\u00f4i (y) c\u1ee7a g\u1ed7 Tr\u00e1m tr\u1eafng bi\u1ebfn t\u00ednh c\u00f3 d\u1ea1ng: y=2,97423+1,4979x1<\/sub>+1,7171x2 <\/sub>– 0,1361x1<\/sub>2 <\/sup>– 0,0686x2<\/sub>2<\/sup>. <\/p>\n

T\u1eeb \u0111\u00f3 x\u00e1c \u0111\u1ecbnh th\u00f4ng s\u1ed1 c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd g\u1ed7 Tr\u00e1m tr\u1eafng b\u1edfi DMDHEU cho \u0111\u1ed9 t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng g\u1ed7 sau r\u1eeda tr\u00f4i cao nh\u1ea5t: t\u1ef7 l\u1ec7 kh\u1ed1i l\u01b0\u1ee3ng ch\u1ea5t x\u00fac t\u00e1c v\u00e0 h\u00f3a ch\u1ea5t l\u00e0 5,5%, th\u1eddi gian x\u1eed l\u00fd nhi\u1ec7t \u1edf 1200<\/sup>C l\u00e0 12,51 gi\u1edd; <\/p>\n

– N\u00e2ng cao \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n sinh h\u1ecdc, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc, m\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc, kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu m\u00f4i tr\u01b0\u1eddng c\u1ee7a g\u1ed7 Tr\u00e1m tr\u1eafng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh b\u1edfi DMDHEU. Kh\u1ed1i l\u01b0\u1ee3ng th\u1ec3 t\u00edch c\u00f3 th\u1ec3 t\u0103ng 19,85%, h\u1ec7 s\u1ed1 ch\u1ed1ng d\u00e3n n\u1edf th\u1ec3 t\u00edch \u0111\u1ea1t 57,94%; \u0111\u1ed9 r\u1ed7ng c\u1ee7a g\u1ed7 bi\u1ebfn t\u00ednh gi\u1ea3m. G\u1ed7 kh\u00f4ng x\u1eed l\u00fd c\u00f3 t\u1ef7 l\u1ec7 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t bi\u1ebfn m\u00e0u do n\u1ea5m Aspergillus niger<\/em> V. Tieghem tr\u00ean 81%, t\u01b0\u01a1ng \u1ee9ng v\u1edbi \u0111\u1ed9 b\u1ec1n \u1edf c\u1ea5p 5 (c\u1ea5p th\u1ea5p nh\u1ea5t), g\u1ed7 x\u1eed l\u00fd DMDHEU n\u1ed3ng \u0111\u1ed9 20\u00f740% c\u00f3 \u0111\u1ed9 b\u1ec1n v\u1edbi lo\u1ea1i n\u1ea5m n\u00e0y \u1edf c\u1ea5p 4, c\u1ea5p 3 ho\u1eb7c c\u1ea5p 2 (t\u1ef7 l\u1ec7 di\u1ec7n t\u00edch bi\u1ebfn m\u00e0u 66,73\u00f715,58%). G\u1ed7 kh\u00f4ng x\u1eed l\u00fd c\u00f3 \u0111\u1ed9 b\u1ec1n v\u1edbi n\u1ea5m Pleurotus ostreatus <\/em>(Jacq. ex Fr.) Kumm \u1edf c\u1ea5p \u0111\u1ed9 – kh\u00f4ng b\u1ec1n (t\u1ed5n hao kh\u1ed1i l\u01b0\u1ee3ng tr\u00ean 26%), g\u1ed7 x\u1eed l\u00fd b\u1edfi DMDHEU n\u1ed3ng \u0111\u1ed9 20\u00f7 40 % c\u00f3 \u0111\u1ed9 b\u1ec1n v\u1edbi n\u1ea5m m\u1ee5c \u0111\u1ea1t c\u1ea5p \u0111\u1ed9 – b\u1ec1n (t\u1ed5n hao kh\u1ed1i l\u01b0\u1ee3ng nh\u1ecf h\u01a1n 5%).Kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ed1i Coptotermes formosamus<\/em> c\u1ee7a g\u1ed7 kh\u00f4ng x\u1eed l\u00fd thu\u1ed9c lo\u1ea1i k\u00e9m (90% s\u1ed1 m\u1eabu c\u00f3 v\u1ebft m\u1ed1i \u0103n), c\u1ee7a g\u1ed7 x\u1eed l\u00fd h\u00f3a ch\u1ea5t n\u1ed3ng \u0111\u1ed9 20\u00f740% – t\u1ed1t (44,44\u00f70% s\u1ed1 m\u1eabu c\u00f3 v\u1ebft m\u1ed1i \u0103n). V\u1edbi c\u00f9ng \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd DMDHEU \u0111\u1ed9 b\u1ec1n sinh h\u1ecdc c\u1ee7a g\u1ed7 cao h\u01a1n c\u1ee7a g\u1ed7 kh\u00f4ng lu\u1ed9c. Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd g\u1ed7 b\u1edfi DMDHEU l\u00e0m t\u0103ng \u0111\u1ed9 b\u1ec1n n\u00e9n d\u1ecdc 3,48\u00f716,54%; t\u0103ng \u0111\u1ed9 b\u1ec1n n\u00e9n ngang 27,31\u00f775,86%; t\u0103ng \u0111\u1ed9 c\u1ee9ng t\u0129nh 15,29\u00f746,37%; t\u0103ng m\u00f4 \u0111un \u0111\u00e0n h\u1ed3i u\u1ed1n t\u0129nh 3,05\u00f711,12%; gi\u1ea3m \u0111\u1ed9 b\u1ec1n u\u1ed1n t\u0129nh 10,46\u00f720,81%,. D\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft nh\u00e2n t\u1ea1o trong 168 gi\u1edd \u0111\u1ed9 l\u1ec7ch m\u00e0u c\u1ee7a g\u1ed7 bi\u1ebfn t\u00ednh th\u1ea5p h\u01a1n g\u1ed7 kh\u00f4ng bi\u1ebfn t\u00ednh. C\u1ea5u t\u1ea1o g\u1ed7 bi\u1ebfn t\u00ednh c\u00f3 s\u1ef1 thay \u0111\u1ed5i khi quan s\u00e1t d\u01b0\u1edbi k\u00ednh hi\u1ec3n vi si\u00eau \u0111i\u1ec7n t\u1eed qu\u00e9t: v\u00e1ch t\u1ebf b\u00e0o d\u00e0y h\u01a1n, s\u1ed1 l\u01b0\u1ee3ng v\u00e0 k\u00edch th\u01b0\u1edbc mao d\u1eabn gi\u1ea3m. H\u00e0m l\u01b0\u1ee3ng formaldehyde t\u1ef1 do trong g\u1ed7 bi\u1ebfn t\u00ednh v\u1edbi \u0111\u1ed9 t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng 30,57% l\u00e0 3,2mg\/100g g\u1ed7 kh\u00f4 ki\u1ec7t. <\/p>\n

– Lu\u1eadn \u00e1n \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t gi\u1ea3i ph\u00e1p n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7 Tr\u00e1m tr\u1eafng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh b\u1edfi DMDHEU l\u00e0m \u0111\u1ed3 g\u1ed7 n\u1ed9i th\u1ea5t, \u0111\u1ed3 g\u1ed7 ngo\u1ea1i th\u1ea5t kh\u00f4ng ti\u1ebfp x\u00fac \u0111\u1ea5t. <\/p>\n

H\u00e0 N\u1ed9i, ng\u00e0y 04 th\u00e1ng 07 n\u0103m 2012<\/em> <\/p>\n\n\n\n
\n

GI\u00c1M \u0110\u1ed0C<\/strong> <\/p>\n

PGS.TS. Tri\u1ec7u V\u0103n H\u00f9ng<\/strong> <\/p>\n<\/td>\n

\n

NG\u01af\u1edcI H\u01af\u1edaNG D\u1eaaN KHOA H\u1eccC<\/strong> <\/p>\n

<\/strong> <\/p>\n

<\/strong> <\/p>\n

<\/strong> <\/p>\n

PGS.TS. Ph\u1ea1m V\u0103n Ch\u01b0\u01a1ng<\/strong> <\/p>\n<\/td>\n

\n

NGHI\u00caN C\u1ee8U SINH<\/strong> <\/p>\n<\/p>\n<\/p>\n

ThS. T\u1ea1 Th\u1ecb Ph\u01b0\u01a1ng Hoa<\/strong> <\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

<\/p>\n

\nTên lu\u1eadn án: <\/span><\/strong>Nghiên c\u1ee9u nâng cao ch\u1ea5t l\u01b0\u1ee3ng g\u1ed7
\nTrám tr\u1eafng (Canarium album <\/em>Lour.
\nRaeush) <\/em>b\u1eb1ng ph\u01b0\u01a1ng pháp bi\u1ebfn tính<\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[42],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9866"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=9866"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9866\/revisions"}],"predecessor-version":[{"id":11316,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/9866\/revisions\/11316"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=9866"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=9866"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=9866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}