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ISO 6541:1981 Agricultural food products - Determination of crude fibre content
Tested with VELP Scientifica FIWE 3 Fiber Analyzer (Code F30520201)

| ¿øº»º¸±â | Application Note ¸®½ºÆ® |
¼­·Ð

- È­ÇÐÀûÀ¸·Î ¼¶À¯ÁúÀº ¾àÇÑ ¿°±â¼º°ú »ê¼º¿ë¾×À» °°ÀÌ ³Ö°í
  ²ú¿©µµ ³ìÁö ¾Ê´Â ¹°ÁúÀ» ¸»ÇÑ´Ù.
- ÀÌ ¹°ÁúµéÀº ÁÖ·Î lignin, hemicellulose, cellulose,
  pectin µîÀ¸·Î ±¸¼ºµÈ´Ù.
- ´ëºÎºÐ ¼ÒÈ­È¿¼Ò¿¡ ÀÇÇØ ¼ÒÈ­µÇÁö ¾ÊÀ¸³ª ÀϺκÐÀº
  ¼ÒÈ­±â°ü¿¡¼­ ±àÁ¤ÀûÀÎ ±â´ÉÀ» Çϱ⵵ ÇÑ´Ù.

º¯ÇüµÈ Scharrer Method ¸¦ ÀÌ¿ëÇÑ »ç·á¿¡¼­ÀÇ ¼¶À¯Áú ÇÔ·® ºÐ¼®

Scharrer reagent ¸¦ ÀÌ¿ëÇÑ Á¶¼¶À¯ ÇÔ·® ºÐ¼®Àº ´ÙÀ½°ú °°Àº ¹æ½ÄÀ¸·Î ÀÌ·ç¾îÁø´Ù.
1. acetic acid, nitric acid ¿Í trichloroacetic acid È¥ÇÕ ¿ë¾×À» ÀÌ¿ëÇÏ¿© ½Ã·á¸¦ boiling
2. filter crucible ³»¿¡ ÀÖ´Â ºÒ¿ë¼º¹°ÁúÀÇ ºÐ¸®¿Í washing.
3. 550 ¡ÆC ÀÇ Àü±â·Î¿¡¼­ 3½Ã°£µ¿¾È °¡¿­
4. ºÒ¿ë¼º¹°ÁúÀ» °ÇÁ¶ÇÑ ÈÄ ¹«°Ô ÃøÁ¤

ÇÊ¿ä½Ã¾à

1. Scharrer reagent consisting of a mixture having the following composition :
  - Acetic acid solution prepared by diluting 365 ml of 96% glacial acetic acid
    with distilled water to 500 ml.
    Used 450 ml of this solution
  - Concentrated nitric acid: 30 ml
  - Trichloroacetic acid, crystalline: 12 g
2. Celite coarse 545
3. Acetone
4. Diethyl ether


ºÐ¼® ¹æ¹ý



1. ½Ã·á¸¦ grinder ¸¦ ÀÌ¿ëÇÏ¿© 1mm ÀÌÇÏ Å©±â·Î grinding ÇÑ´Ù.
2. Celite 1g À» Á¤È®ÇÏ°Ô ÃøÁ¤ÇÏ¿© Crucible ¿¡ ³Ö´Â´Ù.
3. grinding ó¸®ÇÑ ½Ã·á 3g À» Á¤È®È÷ ÃøÁ¤ (W1) ÇÏ¿© Crucible ¿¡ ³Ö´Â´Ù.
  (ÀÌ ¶§ Celite ¿Í ½Ã·áÀÇ ¹«°Ô ¿ÀÂ÷´Â ¡¾ 1 mg À̳»°¡ µÇµµ·Ï Á¤¹ÐÇÏ°Ô °èÃøÇÏ¿©¾ß ÇÑ´Ù.)
4. Crucible À» FIWE unit ¿¡ ¼³Ä¡ÇÑ´Ù.
5. ³ÃÀåµÈ Scharrer reagent 60ml À» Crucible ¿¡ ³Ö´Â´Ù.
6. ²ú±â ½ÃÀÛÇÏ´Â ½ÃÁ¡ºÎÅÍ Á¤È®È÷ 30ºÐ°£ boiling ÇÑ´Ù.
7. Áø°øÀ» ÀÌ¿ëÇÏ¿© boiling ¿¡ »ç¿ëÇß´ø acid ¸¦ Á¦°ÅÇÑ´Ù.
8. ¾à 400ml deionised water ¸¦ water spray device ¸¦ ÀÌ¿ëÇÏ¿© Crucible ³»ºÎ¸¦ washing.
  ÀÌ °úÁ¤À» ÅëÇØ Crucible ¿¡¼­ ½Ã·áÁß ºÐÇØµÈ ³»¿ë¹°À» ¿ÏÀüÈ÷ Á¦°ÅÇϰԵȴÙ.
9. 25ml Acetone ¿ë¾×À» ÀÌ¿ëÇÏ¿© Crucible ³» ³²¾ÆÀÖ´Â ½Ã·á ³»¿ë¹°À» washing ÇÑ´Ù. (3ȸ)
10. Diethyl Ether 25ml ¸¦ ÀÌ¿ëÇÏ¿© Crucible ³» ³²¾ÆÀÖ´Â ½Ã·á ³»¿ë¹°À» washing ÇÑ´Ù. (2ȸ)
11. Crucible À» FIWE ¿¡¼­ ¶¼¾î³½ ÈÄ Oven ¿¡¼­ 130¡ÆC ¿¡¼­ 90ºÐ°£ °ÇÁ¶½ÃŲ ÈÄ °ÇÁ¶µÈ ¹«°Ô¸¦
    ÃøÁ¤ÇÑ´Ù.
12. Crucible À» dessicator ¿¡¼­ ¹«°Ô°¡ ÀÏÁ¤ÇÏ°Ô À¯ÁöµÉ ¶§±îÁö ³Ã°¢½ÃŲ´Ù.
      (ÀÌ ¹«°Ô´Â Á¶¼¶À¯¿Í ash ¸¦ °¡Áö°í ÀÖ´Â Crucible ÀÇ ¹«°Ô°¡ µÈ´Ù. W2)
13. Crucible À» 550¡ÆC ÀÇ muffle ¿¡¼­ 3½Ã°£ µ¿¾È ¹ÝÀÀ½ÃŲ´Ù.
14. ´Ù½Ã dessicator ¿¡ ³õ°í cooling ÇÑ ÈÄ¿¡ ´Ù½Ã ¹«°Ô¸¦ ÃøÁ¤ÇÑ´Ù.
      (ÀÌ ¹«°Ô´Â ash ¸¦ °¡Áö°í ÀÖ´Â crucible ÀÇ ¹«°Ô°¡ µÈ´Ù. W3)

Á¶¼¶À¯·® °è»ê

% Fiber = ((W2 - W3) / W1 ) * 100
W1 = sample weight (1g)
W2 = crucible weight with fiber and ashes, after drying in an oven at 130 ¡ÆC for 90 minutes
W3 = crucible weight with ashes, after muffle at 550 ¡ÆC for three hours

ÃøÁ¤ °úÁ¤

W1 (g) W2 (g) W3 (g) Fiber (%)
2.999 31.778 31.411 12.24
3.006 31.208 30.840 12.24
3.007 31.380 31.015 12.14
3.016 31.524 31.154 12.27
3.017 31.239 30.870 12.23
2.996 32.063 31.691 12.42
Average ¡¾ SD% 12.26 ¡¾ 0.09
RSD% * 0.7
    Fiber Labeled Value: 12%
  * RSD% = (Standard Deviation * 100) / Average


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ÀÌ ÃøÁ¤À» ÅëÇØ ±¸ÇÑ Á¶¼¶À¯ÁúÀÇ ÇÔ·®Àº »ç·áÅë ¿ÜºÎ¿¡ ±âÀçµÈ ¼öÄ¡¿Í ÀÏÄ¡ÇÏ´Â ¸Å¿ì ½Å·Ú¼º ÀÖ´Â °á°ú¸¦ ±¸ÇÒ ¼ö ÀÖ¾ú´Ù. FIWE Raw Fiber Extractor ´Â Á¶¼¶À¯ ÇÔ·® ºÐ¼®¿¡ ¸Å¿ì ÀûÇÕÇϸç Scharrer method ¿¡ °¡Àå ÀÌ»óÀûÀÎ ÀåÄ¡ÀÌ´Ù.

FIWE Fiber Extraction Unit ÀÇ ÀåÁ¡

FIWE Raw Fiber Extractor ÀÇ ÀåÁ¡Àº ´ÙÀ½°ú °°´Ù.
1. 3°³ ¶Ç´Â 6°³ÀÇ »ùÇÃÀ» µ¿½Ã¿¡ ºÐ¼® °¡´É
2. 2½Ã°£À̳»ÀÇ ¸Å¿ì ºü¸¥ ½Ã°£¿¡ ÃßÃâ°úÁ¤ÀÌ °¡´É
3. pump ¿Í air pressure ÀåÄ¡°¡ ³»ÀåµÇ¾î ¸Å¿ì È¿À²ÀûÀÌ°í Æí¸®ÇÑ filtration ÀÌ °¡´É
4. ¡¾1% À̳»ÀÇ ¿ÀÂ÷¹üÀ§¸¦ °¡Áö´Â Á¤¹ÐÇÏ°í Á¤È®ÇÑ Á¶¼¶À¯ ÇÔ·® ºÐ¼®







 
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