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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.19, no.4, 2010³â, pp.343-350
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( Effects of Harvest Seasons on Quality and Microbial Population of Fresh-cut Iceberg Lettuce ) |
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| º» ¿¬±¸´Â ¼öÈ®½Ã±â¿Í °°Àº ¼öÈ® Àü ¿äÀÎÀÌ ¼öÈ® ÈÄ ½Å¼±ÆíÀÌ °á±¸»óÃßÀÇ Ç°Áú°ú ¹Ì»ý¹° ¼ö¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ±¸¸íÇϱâ À§ÇÏ¿© ¼öÇàÇÏ¿´´Ù. ½Å¼±ÆíÀÌ °¡°ø¾÷ü¿¡¼ »ç¿ëÇÏ´Â °á±¸»óÃ߸¦ 5, 6, 7, 10, 12¿ù¿¡ ¼öÈ®ÇÏ¿© °üÇàÀûÀÎ ¹æ¹ýÀ¸·Î °¡°øÇÑ µÚ Çʸ§¿¡ Æ÷ÀåÇϰí $5^{circ}C$¿¡¼ 9ÀÏ µ¿¾È ÀúÀåÇÏ¸é¼ Ç°Áú Á¶»ç¸¦ ÇÏ¿´´Ù. ¹Ì»ý¹° ÃøÁ¤À» À§ÇÑ »ùÇÃÀº °¢ ´Ü°èº°(¼öÈ®, ¼ö¼Û, °¡°øÀü, Àý´Ü, 1Â÷-¼¼Ã´, 2Â÷-¼¼Ã´, ÀúÀå ÈÄ 3, 6, 9ÀÏ)·Î ¼öÁýµÇ¾ú´Ù. ½ÇÇè °á°ú ÇϿ콺¿¡¼ Àç¹èµÇ¾î 5, 10¿ù¿¡ ¼öÈ®µÈ °á±¸»óÃß´Â ½Å¼±ÆíÀÌ °¡°ø ÈÄ Æ÷Àå¹é ³»ºÎÀÇ $O_2$ ³óµµ°¡ ³·°í $CO_2$´Â ¸Å¿ì ³ô¾ÒÀ¸¸ç, Á¦Ç°ÀÇ ÀüÇØÁú ´©ÃâÀÌ ³ô°Ô ³ªÅ¸³µ´Ù. ¹Ý¸é ³ëÁö¿¡¼ Àç¹èµÈ 6, 7¿ù ¼öÈ® ¹× °Ü¿ïö ÇϿ콺Àç¹èÀÎ 12¿ù¿¡ ¼öÈ®ÇÑ ¿ø·á ´Â ºñ±³Àû ³·Àº $CO_2$, ÀüÇØÁú ´©Ãâ ¹× °¥º¯À» ³ªÅ¸³»¾ú´Ù. ¿ø·á»óÅÂÀÇ ¹Ì»ý¹°¼ö´Â 7¿ù(6.76 log)¿¡ °¡Àå ³ô¾Ò°í, ½Å¼±ÆíÀÌ °¡°ø ÈÄ ÀúÀåÁßÀÇ ¹Ì»ý¹° Áõ½ÄÀº 5¿ù ½Ã·á¿¡¼ °¡Àå ³ô°Ô ³ªÅ¸³µ´Ù. ÀÌ»óÀÇ °á°ú·ÎºÎÅÍ ½Å¼±ÆíÀÌ °á±¸»óÃ߸¦ °í¿Â, Àú½ÀÁ¶°ÇÀÇ ³ëÁö¿¡¼ Àç¹èµÇ¾î 6¿ù »ó¼ø¿¡ ¼öÈ®ÇÑ ¿ø·á¸¦ »ç¿ëÇÑ °æ¿ì ǰÁú°ú ¹Ì»ý¹°Àû ¾ÈÀü¼ºÀÌ ¸ðµÎ ¿ì¼öÇÏ¿´´Ù. ¹Ý¸é, ÇϿ콺¿¡¼ Àç¹èµÇ¾î 10¿ù¿¡ ¼öÈ®ÇÑ °á±¸»óÃ߸¦ ¿ø·á·Î »ç¿ëÇÑ °æ¿ì °¡°ø Àü°ú ÈÄÀÇ ¹Ì»ý¹°Àû ¾ÈÀü¼ºÀº ¸ðµÎ ¿ì¼öÇÏ¿´À¸³ª, ÀÌÃë°¡ »¡¸® ¹ß»ýÇÏ¿© ǰÁúƯ¼ºÀÌ ³ª»Ú°Ô ³ªÅ¸³µ´Ù. µû¶ó¼ ¿¬Áß °íǰÁúÀÇ ½Å¼±ÆíÀÌ °á±¸»óÃß »ý»êÀ» À§Çؼ´Â ǰÁú°ú ¾ÈÀü¼ºÀ» µ¿½Ã¿¡ Á¦¾îÇÏ°í ¿ø·áÀÇ È¯°æ¿¡ µû¸¥ ǰÁúÀ¯Áö ±â°£À» ´Þ¸® ¼³Á¤ÇÒ Çʿ䰡 ÀÖ´Â °ÍÀ¸·Î »ý°¢µÈ´Ù. |
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| This study was conducted to investigate the effect of harvest seasons on quality and microbial population at different steps of production chain of fresh-cut iceberg lettuce. Iceberg lettuces harvested in May, June, July, October, and December were processed following industrial practices, and stored at $5^{circ}C$ for 9 days. For microbial measurement, samples were taken from each of the following steps: harvest, transport, pretreatment, cutting, 1st-washing, 2nd-washing, and day 3, 6, and 9 of storage. Iceberg lettuce cultivated in protect house and harvested in May and October showed higher $CO_2$ levels in the packages and electrolyte leakages than lettuce harvested in June, July and December. Microbial population of raw materials harvested in July was highest (6.76 log), and microbial growth rate during storage was highest in samples harvested in May. Lettuce harvested in June had better quality and microbial safety compared to other lettuces. Although lettuce harvested in October and December had less microbial population in either raw materials or processed products, those samples had inferior quality due to off-odor development and severe browning. Therefore, it is required to maintain quality and ensure microbial safety to distribute fresh-cut lettuce with high quality and safety throughout the year. |
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| Ű¿öµå |
| °¥º¯;½Å¼±ÆíÀÌ °á±¸»óÃß;¼öÈ®½Ã±â;¹Ì»ý¹° Áõ½Ä;browning;fresh-cut lettuce;harvest season;microbial contamination; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.19, no.4, 2010³â, pp.343-350
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201015037859937)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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