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ISO 16472:2006 Animal feeding stuffs - Determination of amylase-treated Neutral Detergent Fibre content (aNDF)
AOAC 2002.04 Amylase-treated Neutral Detergent Fibre in Feeds
Tested with VELP Scientifica FIWE Advance Fiber AutoExtractor (Code F30500500). |
Introduction
»ç·áÀÇ Çʼö ¿µ¾ç¼Ò ÇÔ·®Àº »ç·áÀÇ Ç°Áú ¹× µ¿¹°ÀÇ ÀÌ¿ë °¡´É¼º°ú Á÷Á¢ÀûÀ¸·Î ¿¬°üµÇ¾î ÀÖ´Ù..
Neutral Detergent Fiber (NDF)ÀÇ º»ÁúÀûÀÎ °³³äÀº ½Ä¹° ¼¼Æ÷°¡ ¼ÒÈ°¡ Àß µÇÁö ¾Ê´Â hemicellulose, cellulose ¹× ligninÀ¸·Î ±¸¼ºµÈ ¼¼Æ÷º®°ú ¼ÒÈ°¡ Àß µÇ´Â
´ç, ÀüºÐ µîÀ» ÇÔÀ¯ÇÑ ±âŸ ¼¼Æ÷ ±¸¼º ¼ººÐÀ¸·Î ³ª´ ¼ö ÀÖ´Ù´Â °ÍÀÌ´Ù. Hemicellulose, cellulose ¹× ligninÀº non-ruminants¿¡¼ ¼ÒȵÇÁö ¾Ê´Â ¹Ý¸é,
Hemicellulose, cellulose´Â ruminants¿¡¼ ºÎºÐÀûÀ¸·Î ¼Ò鵃 ¼ö ÀÖ´Ù. NDF´Â bulk ¼¶À¯ÁúÀÇ ÁÁÀº ÁöÇ¥ÀÌ¸ç »ç·á ¼·Ãë·®, Áï µ¿¹°ÀÌ ÇÏ·ç Ç¥ÁØ ¼·Ãë·® ¿¹Ãø¿¡ »ç¿ëµÇ¾ú´Ù.
Amylase-treated NDF (aNDF) ¹æ¹ýÀº »ç·áÀÇ ÃÑ ºÒ¿ë¼º ¼¶À¯¸¦ ÃøÁ¤Çϱâ À§ÇØ °³¹ßµÇ¾ú´Ù.
VELP FIWE Advance Fiber AutoExtractorÀÇ ¼º´ÉÀº BIPEA¿¡¼ ÁÖÃÖÇÑ proficiency testing programÀ¸·Î Æò°¡µÇ¾ú´Ù. FIWE Advance Fiber ºÐ¼®±â¸¦ »ç¿ëÇÏ¿© »ùÇÃÀ»
ºÐ¼®ÇÑ °á°ú¸¦ BIPEA Çã¿ë ¹üÀ§¿Í ºñ±³Çß´Ù
Determination of NDF content in Triticale feed and Dehydrated alfalfa feed
FIWE Advance ºÐ¼®±â¸¦ »ç¿ëÇÑ aNDF ºÐ¼®Àº ¿ÏÀü ¹«ÀÎ ÀÛ¾÷À¸·Î ´ÙÀ½°ú °°Àº 3´Ü°è·Î ¿ä¾àÇÒ ¼ö ÀÖ´Ù.
BOILING & FILTERING (DIGESTION) µ¿¾È »ç·á »ùÇÃÀº heat-stable ¥á-amylase-treated enzymeÀÌ Ã·°¡µÈ Neutral Detergent Solution NDS·Î ²ú¿© neutral detergent¿¡ ¿ëÇØ °¡´ÉÇÑ ´ç, ÀüºÐ ¹× soluble pectin µî
¼ººÐÀ» ºÒ¿ë¼º ¼¼Æ÷º® ¹°Áú, hemicellulose, cellulose, lignin µî ¼ººÐÀ¸·ÎºÎÅÍ ºÐ¸®ÇÑ´Ù. ¼¼Æ÷º®¿¡ µÑ·¯ ½ÎÀÎ ³»¿ë¹°ÀÇ ¾à 98%´Â ¼ÒÈ°¡ ÀßµÇ¸ç ´Ù¾çÇÑ ´ç, ÀüºÐ, pectin ¹×
±âŸ °¡¿ë¼º ź¼öȹ°, ´Ü¹éÁú, ºñ´Ü¹éÁú Áú¼Ò ÈÇÕ¹°, ÁöÁú, ¼ö¿ë¼º ¹Ì³×¶ö ¹× ºñŸ¹ÎÀ» Æ÷ÇÔÇÑ´Ù.
WASHINGÇÏ´Â µ¿¾È crucible¿¡ ³²Àº ÀÜ¿©¹°À» ¹°·Î ¼¼Ã´ÇÏ¿© detergent residues¸¦ Á¦°ÅÇÑ´Ù. ¸¶Áö¸· ´Ü°è´Â »ùÇÃÀÇ DEFATTINGÀÌ°í ÀÌ ´Ü°è¿¡¼ÀÇ ¸¶Áö¸· ¼¼Ã´Àº ¾Æ¼¼ÅæÀ¸·Î ¼öÇàµÈ´Ù.
BIPEA Samples
Triticale |
ID : 6-3813-0027 |
NDF assigned value: 12.6 % |
Tolerance range : 11.1 - 14.1 % |
Dehydrated alfalfa |
ID : 8-1413-0195 |
NDF assigned value : 38.8 % |
Tolerance range : 36.8 - 40.8 % |
Chemicals and Equipment required
1. Analytical balance, 4 decimals
2. Glass Crucibles P2, 6pcs (A00000140)
3. Neutral detergent solution NDS.
4. Heat-stable alpha-amylase, as a solution or a water extract of lyophilized enzyme powder (approx. 1 g of powder extracted in 100 ml of water).
5. Sodium sulfite anhydrous (Na2SO3)
6. Acetone, technical grade
Crucibles Preparation
VELP barcode reader (Barcode scanner with USB socket Code: A00000364 or Wireless barcode scanner Code: A00000365)¸¦ FIWE Advance¿¡ ¿¬°áÇÑ´Ù.
Analysis/Details¸¦ ¼±Åà ÈÄ crucible¸¦ ½ºÄµÇÏ°í 0.5gÀÇ »ùÇÃÀ» ÃøÁ¤ÇÏ¿© °¢ crucible (Msample)¿¡ ³Ö°í ÃøÁ¤µÈ Msample °ªÀ» Àú¿ï¿¡¼ FIWE Advance·Î Àü¼ÛÇÑ´Ù.
±×¸®°í Sodium sulfite anhydrous 0.5gÀ» ÁغñÇÑ´Ù.
ÀÌ ÀÛ¾÷Àº ¸ðµç »ùÇÿ¡ ´ëÇØ ¼øÂ÷ÀûÀ¸·Î ¹Ýº¹À¸·Î ÁøÇàµÈ´Ù. 2°³ÀÇ blank¸¦ Æ÷ÇÔÇÑ 20~30°³ÀÇ »ùÇÃÀ» ºÐ¼®ÇÑ´Ù.
Analysis with FIWE Advance
ControlPad¿¡¼ ºÐ¼®À» ¼±ÅÃÇÑ ÈÄ ¾Æ·¡¿Í °°Àº ³»¿ëÀÇ parameter¸¦ Æ÷ÇÔÇÏ´Â NDF - Neutral detergent fiber (Van Soest) ºÐ¼®¹ýÀ» ¼±ÅÃÇÑ´Ù.
- Crucibles porosity : P2
- Preheat : No
- NDS : 50 ml
- Octanol : Yes
- Enzyme : Yes
- Digestion time : 60 minutes
- Washing : 50 ml of distilled water for 3 times
Lower the lever and position the heating shield.
- START¸¦ ´·¯ ºÐ¼®À» ½ÃÀÛÇÑ´Ù.
- ºÐ¼®ÀÌ ³¡³ª¸é crucible¸¦ COEX ÀåÄ¡¿¡ ¿Å°Ü 25ml ¾Æ¼¼ÅæÀ¸·Î 3ȸ filteringÇÏ¿© Áö¹æÀ» Á¦°ÅÇÑ´Ù.
- 130¡ÆC ¡¾ 2¡ÆC ¿Àºì¿¡¼ 2½Ã°£ °ÇÁ¶ÇÑ ÈÄ desiccator¿¡¼ ³Ã°¢ÇÑ´Ù
- °á°ú ¸Þ´º¿¡¼ ºÐ¼® ¿Ï·áµÈ crucible ID¸¦ ¼±ÅÃÇÏ°í °è»êÀ» ´©¸¥ ÈÄ barcode reader·Î crucible¸¦ ½ºÄµÇÏ°í³ª¼ 0,0001g (Mdry ¹× Bdry)±îÁö ¹«°Ô¸¦ ÃøÁ¤ÇÑ´Ù.
- 525 ¡¾ 15¡ÆCÀÇ muffle¿¡¼ ÀÜ·ù¹°ÀÌ ´ã±ä crucibleÀ» ÃÖ¼Ò 3½Ã°£ µ¿¾È ¶Ç´Â ź¼Ò°¡ ¾ø¾îÁú ¶§±îÁö °¡¿ÇÑ ÈÄ desiccator¿¡¼ ³Ã°¢ÇÑ´Ù
- °á°ú ¸Þ´º¿¡¼ ºÐ¼® ¿Ï·áµÈ crucible ID¸¦ ¼±ÅÃÇÏ°í °è»êÀ» ´©¸¥ ÈÄ barcode reader·Î crucible¸¦ ½ºÄµÇÏ°í³ª¼ 0,0001g (Mash ¹× Bash)±îÁö ¹«°Ô¸¦ ÃøÁ¤ÇÑ´Ù
Results on Triticale feed and Dehydrated alfalfa feed
aNDF %= (Mdry - Mash - (Bdry-Bash)) *100/Msample
Mdry = sample weight after drying
Mash = sample weight after ashing
Msample = sample weight
Bdry = blank weight after drying
Bash = blank weight after ashing
Conclusion
- °á°ú´Â ¾ÆÁÖ ³·Àº »ó´ë Ç¥ÁØ ÆíÂ÷·Î ·ÚÇÒ ¼ö ÀÖ°í ¿¹»ó °ª°ú À¯»çÇÏ´Ù
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- ½Å·Ú¼º ³ôÀº ºÐ¼®±âÀÎ FIWE Advance ÀåÄ¡¸¦ »ç¿ëÇÏ¸é ºÐ¼® Á¶°ÇÀ» ¾ÆÁÖ ½±°Ô Ç¥ÁØÈÇÒ ¼ö ÀÖ´Ù
Benefits of FIWE Advance are :
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