Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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Effects of Bagging with Different Pear Paper Bags on the Color of Fruit Skin and Qualities in 'Manpungbae'

봉지 재배가 '만풍배'의 과피색 및 품질에 미치는 영향

Kim, Yoon-Kyeong;Kang, Sam-Seok;Cho, Kwang-Sik;Jeong, Sang-Bouk
김윤경;강삼석;조광식;정상복

  • Published : 20100200
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Abstract

The study was conducted to examine physical characteristics of paper bags and evaluate skin color through in the fruits produced by bagging different paper bags. Newspaper bag showed the highest light transmittance with 6.6% and produced fruits which contain high chlorophyll contents in skin with 1.03 mg${\cdot}$m$^{-2}$ showing that L and a values were good. Fruits skin by double or triple paper bags except for newspaper bag contained chlorophyll contents 0.86-0.7 mg${\cdot}$m$^{-2}$ and they were increased as light transmittance rate increased. Especially, black outer bag and blue inner bag was similar to triple paper bags in light transmittance rate but hardness was similar to ones by newspaper bag. In result, it seemed that there was a close correlation among light transmittance of paper bag, chlorophyll content and appearance of the fruit skin in 'Manpungbae'.

'만풍배'는 과육선숙형 품종으로 과실 성숙 후에도 과피에 녹색이 많이 남아 상품성을 저하시키며, 소비자에게는 미숙과로 인식되어 시장에서 낮은 가격이 형성되는 요인이 되고 있어 '만풍배' 외관을 향상시킬 수 있는 봉지 선발이 필요하다. 따라서, 9종류의 2중, 3중 착색봉지를 사용하여 과피색 변화를 관찰함으로써 과피 외관을 향상시킬 수 있는 봉지 물성 요인과 괘대 봉지에 따른 과실의 특성을 확인하고자 본 시험을 수행하였다. 광선 투과율이 6.6%로 높았던 신문봉지는 과피의 클로로필 함량이 1.03mg${\cdot}$m$^{-2}$로 많았고 과피미려도 관능평가 결과도 가장 낮았다. 2중 봉지와 3중 봉지는 클로로필 함량이 0.86-0.7mg${\cdot}$m$^{-2}$ 수준으로 광선 투과율이 높을수록 과피의 클로로필 함량이 증가하였다. 특히, 겉지 흑색, 속지 청색 봉지는 2중 봉지이면서 3중 봉지 수준의 광 투과율을 보이나 과실의 경도는 신문 봉지 수준이었다. '만풍배'에서 봉지의 광투과율은 엽록소 함량이 과피 외관과 밀접한 관계가 있는 것으로 확인되었다.

Keywords

References

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