T\u1eadn d\u1ee5ng ngu\u1ed3n ph\u1ebf ph\u1ea9m h\u1ea1t b\u01a1, nh\u00f3m t\u00e1c gi\u1ea3 Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc S\u01b0 ph\u1ea1m TPHCM \u0111\u00e3 t\u1ea1o ra ch\u1ebf ph\u1ea9m polyphenol d\u1ea1ng b\u1ed9t, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng l\u00e0m th\u1ee9c \u0103n nh\u1eb1m n\u0103ng t\u0103ng c\u01b0\u1eddng h\u1ec7 mi\u1ec5n d\u1ecbch cho t\u00f4m th\u1ebb ch\u00e2n tr\u1eafng.Vi khu\u1ea9n Vibrio parahaematolycus \u0111\u01b0\u1ee3c xem l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y n\u00ean hi\u1ec7n t\u01b0\u1ee3ng b\u1ec7nh d\u1eabn \u0111\u1ebfn t\u00f4m nu\u00f4i ch\u1ebft h\u00e0ng lo\u1ea1t. Nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, xu h\u01b0\u1edbng b\u1ed5 sung c\u00e1c ch\u1ea5t gi\u00e0u polyphenol (ch\u1ed1ng vi\u00eam, ch\u1ed1ng \u00f4 xy h\u00f3a t\u1ed1t) c\u00f3 ngu\u1ed3n g\u1ed1c t\u1ef1 nhi\u00ean nh\u1eb1m c\u1ea3i thi\u1ec7n t\u0103ng tr\u01b0\u1edfng, s\u1ee9c kh\u1ecfe v\u00e0 ph\u00f2ng ch\u1ed1ng b\u1ec7nh cho v\u1eadt nu\u00f4i, th\u1ee7y s\u1ea3n \u0111\u01b0\u1ee3c ch\u00fa tr\u1ecdng. Trong \u0111\u00f3, c\u00e1c ch\u1ea5t ch\u1ed1ng oxy h\u00f3a c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb th\u1ef1c v\u1eadt, kh\u00f4ng ch\u1ec9 c\u00f3 kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n qu\u00e1 tr\u00ecnh oxy h\u00f3a ch\u1ea5t b\u00e9o, protein trong th\u1ee9c \u0103n th\u1ee7y s\u1ea3n, m\u00e0 c\u00f2n c\u00f3 th\u00eam nhi\u1ec1u kh\u1ea3 n\u0103ng nh\u01b0 kh\u00e1ng khu\u1ea9n, t\u0103ng c\u01b0\u1eddng h\u1ec7 mi\u1ec5n d\u1ecbch, k\u00edch th\u00edch t\u0103ng tr\u01b0\u1edfng, t\u1ef7 l\u1ec7 s\u1ed1ng \u1edf v\u1eadt nu\u00f4i, th\u1ee7y s\u1ea3n.
Trong h\u1ea1t b\u01a1 c\u00f3 ngu\u1ed3n polyphenol cao, v\u1edbi c\u00e1c nh\u00f3m h\u1ee3p ch\u1ea5t \u0111a d\u1ea1ng, nhi\u1ec1u ho\u1ea1t t\u00ednh sinh h\u1ecdc, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nh\u01b0 c\u00e1c ph\u1ee5 gia th\u1ef1c ph\u1ea9m, th\u1ee9c \u0103n ch\u0103n nu\u00f4i. Tuy nhi\u00ean, \u1edf Vi\u1ec7t Nam, ph\u1ee5 ph\u1ea9m h\u1ea1t b\u01a1 c\u00f2n ch\u01b0a \u0111\u01b0\u1ee3c t\u1eadn d\u1ee5ng.![\"H\u1ea1t](\"http:\/\/khoahocphattrien.vn\/Images\/Uploaded\/Share\/2022\/01\/18\/d9aBo--H1.gif\")
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H\u1ea1t b\u01a1 ch\u1ee9a h\u00e0m l\u01b0\u1ee3ng polyphenol cao \u1ea2nh: NNC
Trong \u0111\u1ec1 t\u00e0i \u201cNghi\u00ean c\u1ee9u \u0111i\u1ec1u ch\u1ebf s\u1ea3n ph\u1ea9m polyphenol t\u1eeb h\u1ea1t b\u01a1 (Persea americana Mill) nh\u1eb1m n\u00e2ng cao hi\u1ec7u qu\u1ea3 nu\u00f4i t\u00f4m th\u1ebb ch\u00e2n tr\u1eafng (Litopenaeus Vannamei)\u201d, nh\u00f3m t\u00e1c gi\u1ea3 c\u1ee7a Tr\u01b0\u1eddng \u0110\u1ea1i h\u1ecdc S\u01b0 ph\u1ea1m K\u1ef9 thu\u1eadt TPHCM \u0111\u00e3 thu th\u1eadp h\u1ea1t b\u01a1 t\u1ea1i \u0110\u1eafc N\u00f4ng, \u0111em r\u1eeda s\u1ea1ch, s\u1ea5y kh\u00f4, sau \u0111\u00f3 chi\u1ebft xu\u1ea5t polyphenol. \u0110\u1ec3 \u0111i\u1ec1u ch\u1ebf s\u1ea3n ph\u1ea9m polyphenol d\u1ea1ng b\u1ed9t, ngo\u00e0i polyphenol \u0111\u01b0\u1ee3c tr\u00edch l\u00fd t\u1eeb h\u1ea1t b\u01a1, nh\u00f3m ph\u1ed1i tr\u1ed9n th\u00eam b\u1ed9t b\u1eafp, b\u1ed9t m\u1ef3.
Ch\u1ebf ph\u1ea9m polyphenol t\u1eeb h\u1ea1t b\u01a1 c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 t\u1ed5ng h\u00e0m l\u01b0\u1ee3ng polyphenol cao (TPC >2.000 mgGAE\/100 g DW), c\u00f3 ho\u1ea1t t\u00ednh sinh h\u1ecdc nh\u01b0 \u1ee9c ch\u1ebf g\u1ed1c t\u1ef1 do DPPH (IC50 <30 \u00b5g\/mL), \u1ee9c ch\u1ebf Vibrio parahaematolycus (MIC, <150 \u00b5g\/mL), \u0111\u1ea1t ch\u1ec9 ti\u00eau kim lo\u1ea1i n\u1eb7ng v\u00e0 vi sinh (QCVN 02-31-2:2019\/BNNPTNT, theo quy chu\u1ea9n k\u1ef9 thu\u1eadt qu\u1ed1c gia th\u1ee9c \u0103n th\u1ee7y s\u1ea3n).
Th\u1eed nghi\u1ec7m tr\u00ean c\u00e1c m\u00f4 h\u00ecnh nu\u00f4i t\u00f4m trong b\u1ec3 composite, b\u1ec3 k\u00ednh trong 2 th\u00e1ng cho th\u1ea5y, t\u00f4m \u0103n th\u1ee9c \u0103n ph\u1ed1i tr\u1ed9n ch\u1ebf ph\u1ea9m polyphenol c\u00f3 t\u1ef7 l\u1ec7 s\u1ed1ng cao h\u01a1n 20% so v\u1edbi t\u00f4m \u0111\u1ed1i ch\u1ee9ng (s\u1eed d\u1ee5ng th\u1ee9c \u0103n th\u00f4ng th\u01b0\u1eddng) v\u00e0 c\u00f3 hi\u1ec7u qu\u1ea3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi s\u1ea3n ph\u1ea9m BM, khi t\u00f4m nhi\u1ec5m vi khu\u1ea9n Vibrio parahaematolycus.![\"c\"](\"http:\/\/khoahocphattrien.vn\/Images\/Uploaded\/Share\/2022\/01\/18\/Bo--Che-pham1.gif\")
Ch\u1ebf ph\u1ea9m polyphenol t\u1eeb h\u1ea1t b\u01a1. \u1ea2nh: NNC
K\u1ebft qu\u1ea3 ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc c\u1ee7a t\u00f4m n\u1ea5u ch\u00edn cho th\u1ea5y, kh\u00f4ng c\u00f3 s\u1ef1 thay \u0111\u1ed5i l\u1edbn \u1edf c\u00e1c th\u00e0nh ph\u1ea7n nh\u01b0 \u0111\u1ed9 \u1ea9m, protein, lipid, tro v\u00e0 canxi khi t\u00f4m nu\u00f4i \u0111\u01b0\u1ee3c cho \u0103n c\u00e1c th\u1ee9c \u0103n c\u00f3 ho\u1eb7c kh\u00f4ng c\u00f3 th\u00e0nh ph\u1ea7n polyphenol. C\u00e1c thu\u1ed9c t\u00ednh m\u00e0u, m\u00f9i, v\u1ecb c\u1ee7a t\u00f4m trong th\u00ed nghi\u1ec7m n\u00e0y h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t th\u1ed1ng k\u00ea gi\u1eefa c\u00e1c nghi\u1ec7m th\u1ee9c – TS Phan Th\u1ecb Anh \u0110\u00e0o, Ch\u1ee7 nhi\u1ec7m \u0111\u1ec1 t\u00e0i, cho bi\u1ebft. \u0110i\u1ec1u n\u00e0y ch\u1ee9ng t\u1ecf, khi b\u1ed5 sung ch\u1ebf ph\u1ea9m polyphenol ho\u1eb7c ch\u1ebf ph\u1ea9m BM ho\u1eb7c kh\u00f4ng b\u1ed5 sung b\u1ea5t k\u1ef3 ch\u1ebf ph\u1ea9m n\u00e0o \u0111\u1ec1u kh\u00f4ng l\u00e0m bi\u1ebfn \u0111\u1ed5i \u0111\u1ebfn thu\u1ed9c t\u00ednh c\u1ea3m quan c\u0169ng nh\u01b0 thay \u0111\u1ed5i c\u1ea5u tr\u00fac c\u01a1 th\u1ecbt t\u00f4m.
Theo TS Phan Th\u1ecb Anh \u0110\u00e0o, ch\u1ebf ph\u1ea9m polyphenol t\u1eeb h\u1ea1t b\u01a1 c\u00f3 th\u00e0nh ph\u1ea7n polyphenol t\u1ed5ng cao, ch\u1ee9a nhi\u1ec1u c\u00e1c ho\u1ea1t ch\u1ea5t c\u00f3 ho\u1ea1t t\u00ednh sinh h\u1ecdc t\u1ed1t. V\u00ec v\u1eady, n\u00ean m\u1edf r\u1ed9ng \u1ee9ng d\u1ee5ng c\u1ee7a ch\u1ebf ph\u1ea9m n\u00e0y nh\u01b0 ph\u1ed1i tr\u1ed9n trong th\u1ee9c \u0103n cho gia c\u1ea7m, gia s\u00fac, nghi\u00ean c\u1ee9u c\u00e1c ho\u1ea1t t\u00ednh sinh h\u1ecdc kh\u00e1c nh\u01b0 ung th\u01b0. \u0110\u1ed3ng th\u1eddi, c\u1ea7n ti\u1ebfp t\u1ee5c th\u1eed nghi\u1ec7m tr\u00ean ao, \u0111\u1ea7m nu\u00f4i t\u00f4m.
\u0110\u1ec1 t\u00e0i nghi\u00ean c\u1ee9u c\u1ee7a nh\u00f3m t\u00e1c gi\u1ea3 \u0111\u00e3 \u0111\u01b0\u1ee3c S\u1edf KH&CN TPHCM nghi\u1ec7m thu.
Ki\u1ec1u Anh<\/strong><\/p>\n\n\n\n