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0.5 g each of the legume samples powder were extracted under mechanical agitation with 20 ml 0.5 M HCl for 2 h at room temperature (Graf & Dintzis, 1982). The extract was centrifuged (700 g, 10 min) and the supematant decanted, frozen overnight, centrifuged and filtered through MF-Millipore (0.22 pm). The inositol phosphates were separated from the filtrate and concentrated by the ion-exchange procedure of Sandberg and Ahderinne (1986) with some modifications. The filtrate was evaporated to dryness under vacuum (35¡æ, dissolved in 15 ml, 25 mM HCI, and passed through a strong anion-exchange (SAX) column that was connected to a vacuum manifold (Visiprep; Supelco, Bellefonte, PA, USA). The loaded SAX column was washed successively with 10 and 5 ml of 25 mM HCI. The resin-bound inositol polyphosphates (IP3, IP4, IP5 and IP6) were then eluted with ten 1 ml portions of 2 M HCl. The eluent was evaporated to dryness and diluted with 0.5 ml of mobile phase. ×Ô¼º´óÖ·ÒëÁËÏ£¬ÇóÖú¸÷λ´óÉñ£¬¸Ã¶Î»°Óкܶ಻Àí½âµÄ£¬ È¡0.5gÉÏÊö·ÛÄ©ÓÃ20mlµÄ0.5MµÄÑÎËáÊÒÎÂÏ»úе½Á°è½þÌá2h (Graf & Dintzis, 1982)£¬ÀëÐÄ700g¡Á10minºóÈ¡ÉÏÇ壬Àä¶³¹ýÒ¹£¬²¢¹ý0.22¦ÌÂËĤ(MF-Millipore)£¬¼¡´¼Á×ËáÑÎͨ¹ýÂËĤ¹ýÂËÖÁÂËÒºÖУ¬²¢¾¹ýSandberg and Ahderinne (1986)¸Ä½øµÄÀë×Ó½»»»¹ý³Ì½øÐÐŨËõ¡£ÂËÒºÔÚ³éÕæ¿Õºó35ÉãÊ϶ȸÉÔï(Õæ¿Õ¸ÉÔïÆ÷ 35¡æ)È»ºóÓÃ15mlŨ¶ÈΪ25mMÑÎËὫÆäÈܽ⣬ÉÏÇ¿ÒõÀë×Ó½»»»Öù(¼¾ï§¼üºÏ)£¬¸ÃÇ¿ÒõÀë×Ó½»»»ÖùÓëÕæ¿ÕÆç¹Ü×°ÖÃÉÏÏàÁ¬£¬ÒÀ´ÎÓÃ10m 25mMÑÎËá ºÍ5m l25mMÑÎËáÏ´ÍÑ£¬ÓëÊ÷Ö¬½áºÏµÄ¼¡´¼Á×Ëá(IP3£¬IP4£¬IP5ºÍIP6)±»ten ¸ö1ml ²¿·Ö2MµÄÑÎËáÏ´ÍÑ Óм¸¸öµØ·½²»ÊǺÜÃ÷°×£¬ÌØÇóÖú´óÅ£ÃǸøµã×Ô¼ºµÄ¿´·¨ 1¡¢ÉÏÃæËµ0.5gµÄ·ÛÄ©ÔÚ0.5MµÄÑÎËáÖлúе½Á°è£¬ÓôÅÁ¦½Á°èÊÇ·ñ¿ÉÒÔ£¿ 2¡¢ÀëÐÄÈ¡ÉÏÇåºóÀä¶³¹ýÒ¹µÄÄ¿µÄÊÇʲô£¿ 3¡¢¸ÃÇ¿ÒõÀë×Ó½»»»ÖùÓëÕæ¿ÕÆç¹Ü×°ÖÃÉÏÏàÁ¬£¬ÏëÎÊÏÂʵÑéÊÒûÓÐÕæ¿ÕÆç¹Ü×°ÖÃÔõô°ì£¿¸Ã×°ÖõÄ×÷ÓÃÊÇʲô£¿¿É·ñÓÃÆäËû´úÌæ£¿ 4¡¢ºóÃæËµÓÃ25mMÑÎËáÁ¬ÐøÏ´ÍÑ£¬ÎÒÏëÎÊÏÂΪʲôд³ÉThe loaded SAX column was washed successively with 10 and 5 ml of 25 mM HCI£¬ÊÇÏÈÄÃ10mlÏ´ÔÙÄÃ5mlÏ´Âð£¿ÎªÊ²Ã´ÒªÕâô×ö£¬Ï´µÄʱºòÊÇ10mlÈ«²¿¼Ó½øÈ¥Ö®ºóÔÙ½«5mlÈ«²¿¼Ó½øÈ¥Â𣿠5¡¢»¹ÓÐ×î×î×î²»Àí½âµÄºóÃæµÄÒ»¾ä£¬The resin-bound inositol polyphosphates (IP3, IP4, IP5 and IP6) were then eluted with ten 1 ml portions of 2 M HCl£¬ËµÊÇÓëÊ÷Ö¬½áºÏµÄ¼¡´¼¶àÁ×Ëá±» ten 1 ml portions of 2MÑÎËáÏ´ÍÑ£¬Õâ¸öÊǵÚ10¸ö1mlÂð£¿ÊÇʲôÒâ˼£¿ÊǼÓ10´ÎÂð£¿Ã¿´Î¼Ó1ml£¬È»ºóÊÕ¼¯¼ÓµÚ10¸ö1mlʱºòµÄÏ´ÍÑÒº£¿ÄÇÊÇÊÕ¼¯1mlÂð£¿ÕæÐIJ»¶®£¬Ï£Íû´óÅ£Äܰï°ïæ~~лл£¡£¡£¡ |
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