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1. œÎµŸ´ „¡ºÊœo µœš¸É‡´—Á¨º °„Å—o¤µ¨oµŠšÎ µ‡ªµ¤³°µ— Ÿ¹ÉŠÄ®o®oŠÄœ¨´„¬–³ °Š›¦¦¤µ˜· „n°œš¸É‹³
œÎ µÅž´ÉŠ
2. ´ÉŠœÊ宜´ „š´ÊŠ®¤—
3. ‡´—Á¨º°„ÁŒ¡µ³nªœš¸É¦´ž¦³šµœÅ—o Ánœ Ÿ´„µŠœ·—¦´ž¦³šµœÁŒ¡µ³Ä µŠœ·—¦´ž¦³šµœ
ÁŒ¡µ³¨Îµ˜oœ µŠœ· —¦´ž¦³šµœÁŒ¡µ³®´ª Áž}œ˜oœ
4. nŠ˜´ª°¥nµŠµŠn ªœÎµ®¦´ª·Á‡¦µ³®r‡ªµ¤ºÊœ
5. ˜´ª°¥nµŠnªœš¸ÉÁ®¨º°œÎµ¤µ´ÉŠ ¨oª®´Éœ®¥µ Ÿ¹É ŠÄ®o®oŠ ¨oª°Äœ˜¼o°°»–®£¼ ¤·
60 qC ‹œÂ®oŠ
6. ´ÉŠ˜´ª°¥nµŠš¸É ®oŠÂ¨oª°¸„‡¦´ÊŠ ¨oª‹¹ŠœÎ µÅž——oª¥Á‡¦ºÉ°Š—¨³Á°¸¥—
7. ¦¦‹»Änª—˜´ª°¥nµŠ ®¦º°™»Šš¸É¤¸Ž·ž žd— µ®¦º°Ž· žÄ®oœn œ žd—Œ¨µ„ Á„ȝŪoĜ˜¼oÁ¥Èœ ¦°„µ¦
ª·Á‡¦µ³®r˜n°Åž
‹µ„œ´Ê œšÎµ„µ¦ª· Á‡¦µ³®r‡»–‡nµšµŠÃ£œµ„µ¦ °ŠŸ´ „¡ºÊœo µœš¸É˜o°Š„µ¦nŠÁ¦·¤Ä®o¤¸„µ¦¦·Ã£‡Á¡·É¤¤µ„ ¹Êœ
×¥„µ¦ª·Á‡¦µ³®r°Š‡rž¦³„° °Šµ¦°µ®µ¦ÄœŸ´„¡ºÊœoµœ (Cunniff, 1995) ŗo „n
Þ¦˜¸œ ª·Á‡¦µ³®r ž¦·¤µ–ŜئÁ‹œ˜µ¤ AOAC ª·›¸ Block Digestion
Å ¤´œ ª·Á‡¦µ³®rž¦·¤µ–Å ¤´œ˜µ¤ AOAC ª·›¸ Soxhlet extraction
‡ªµ¤ºÊ œ ª·Á‡¦µ³®r‡ªµ¤º ʜ˜µ¤ AOAC ª·›¸ Loss on Drying at 95-100 qC
Á™oµ ª·Á‡¦µ³®rž¦·¤µ–Á™o µ˜µ¤ AOAC ª·›¸ Dry Ash Method
Áo œÄ¥š´ÊŠ®¤— ª·Á‡¦µ³®rž¦·¤µ–ÁoœÄ¥š´ÊŠ®¤—˜µ¤ AOAC ª·›¸ Fritted Glass Crucible
‡µ¦rÝűÁ—¦˜ ×¥„µ¦‡Îµœª– ‡º° ‡µ¦rÝűÁ—¦˜ = 100 - (œÊε + Þ¦˜¸ œ + Å ¤´œ + Á™oµ))
¡¨´ŠŠµœ‡Îµœª–Å—o‹µ„µ¦°µ®µ¦ 3 œ·— ‡º° Þ¦˜¸ œ Å ¤´œ ¨³‡µ¦rÝűÁ—¦˜
¦n›µ˜» ŗo„n ÎÁ—¸¥¤ ‡¨ÁŽ¸¥¤ ¨³Á®¨È„ ª·Á‡¦µ³®r ×¥ª·›¸ Flame, Graphite furnace
ª·˜µ¤·œ ŗo„n ª·˜µ¤·œÁ° ª·˜µ¤·œ¸ ®œ¹ÉŠ ¨³ª·˜µ¤·œ¸ °Š ª·Á‡¦µ³®r×¥ª·›¸ HPLC
3. ª·Á‡¦µ³®r‡»–¤´˜· µ¦°°„§š›·ÍšµŠ¸ª£µ¡ °ŠŸ´„¡ºÊœo µœš¸É‡´—Á¨º °„Å—o
šÎµ„µ¦ª·Á‡¦µ³®r‡» –¤´˜·°Šµ¦°°„§š›·Í šµŠ¸ª£µ¡ ×¥šÎµ„µ¦„´—µ¦ÄœŸ´„¡ºÊœoµœš¸É‡´ —Á¨º°„Å—o ×¥
čoÁ„–”r„µ¦¤¸ ¦¦¡‡»–„µ¦°°„§š›·ÍšµŠ¥µŽ¹ÉŠÅ—o o°¤¼¨‹µ„„µ¦´¤£µ¬–r®¤°¡ºÊœoµœÄœ°ÎµÁ£°„Š®¦µ ‹´Š®ª´ —¡´š¨»Š
˜´ª°¥nµŠÁnœ ¤¸ ¦¦¡‡»–Áž}œ¥µ ´¨¤Äœ¨ÎµÅo Áž}œ¥µÎµ¦»Š®´ªÄ‹ ®¦º°¥µÂ„oÅ o ¥µÎµ¦»Š›µ˜» Áž}œ˜oœ ×¥šÎµ„µ¦„´—‹µ„
nªœ˜n µŠÇ °µš·Ánœ ĝ —°„ Ÿ¨ ¨Îµ˜o œ ®¦º°Á¤¨È— —o ª¥˜´ªšÎµ¨³¨µ¥š¸É Á®¤µ³¤ ŗo„n Á¤šµœ°¨ (Maisuthisakul et al .,
2007) ‹µ„œ´Ê œšÎµ„µ¦ª·Á‡¦µ³®r§š›·Í˜oµœµ¦°œ» ¤¼¨°· ¦³ ®¦º° §š›·Í˜oµœ°°„Ž· Á—´Éœ (Antioxidant) ×¥ª·›¸ DPPH (Yen
and Wu, 1999)