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2.5. Analysis of the composition of SFP
The HPLC method was used to identify the monosaccharides
in SFP [11]. The sample (10 mg) of SFP was hydrolyzed with
2 mol/l H2SO4 (2 ml) at 100 ◦C for 5 h, and the excess acid was
neutralized with barium carbonate. After standing overnight, the
neutral products were separated by centrifugation at 3000 rpm
for 10 min, 100 l supernatant was collected and reacted with 1-
phenyl-3-methyl-5-pyrazolone, then subsequently separated by
HPLC (Shimadzu LC-10AT VP, Japan) using a Packed column
(4.6 ¡Á 250 mm) with detection at 250 nm. The mobile phase were
consisted of 78% phosphate buffer solution (0.05 M, KH2PO4-NaOH,
pH 6.9) and 22% acetonitrile (v/v), and the samples were eluted at a
flow rate of 1.0 ml/min at 28 ◦C. In this study, l-Rha, d-Gal, d-GalA,
d-Glu and Ara were used as references.

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2.5.SFP µÄ×é³ÉµÄ·ÖÎö¸ßЧҺÏàÉ«Æ×·¨ÓÃÀ´±êʶµ¥ÌÇ×é³ÉµÄÔÚ SFP [11]¡£Ê¾Àý (10 ºÁ¿Ë) µÄ SFP ±»Ë®½âÓë2 mol/l h2 Èç´Ë 4 £¨2 ºÁÉý£© 100 ◦C 5 h ºÍ¹ýÊ£µÄËáÊÇÓë̼Ëá±µÖÐÁ¢»¯¡£ºóÕ¾ÔÚÒ»Ò¹Ö®¼ä£¬ÖÐÐÔ²úÆ·±»ÓÃÔÚ 3000 rpm ÀëÐÄ·¨·ÖÀë10 ·ÖÖÓ£¬100 ÉýÉÏÇåÒºÊÕ¼¯²¢Óë 1-µÄ·´Ó¦±½»ù-3-¼×»ù-5-ßÁßòͪ£¬È»ºóËæºó¸ô¿ª¸ßЧҺÏàÉ«Æ×·¨ÈÕ±¾µº½ò LC-10AT ¸±×ܲã© ʹÓÃÌî³äµÄÖù(4.6 ¡Á 250 ºÁÃ×) Óë¼ì²âÔÚ 250 ºÁ΢Ãס£Á÷¶¯ÏàÁ˰üÀ¨ÁË 78%Á×ËỺ³åÈÜÒº (0.05 M£¬KH2PO4-NaOH£¬pH 6.9) ºÍÒÒëæ 22%(v/v) ºÍÑùÆ·±»Ï´ÍÑÔÚ28 ◦C 1.0 ml/min µÄÁ÷Á¿ËÙÂÊ¡£ÔÚ´ËÑо¿£¬l Rha£¬d-°ëÈéÌÇ£¬d-Áª»¶Íí»ád-¹È°±ËáºÍ Ara ±»ÓÃ×÷²Î¿¼¡£
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