Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Quality Evaluation of Fresh-Cut Products in the Market

시중 판매중인 Fresh-Cut 채소 제품의 품질평가

  • Published : 2007.05.30
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Abstract

Most fresh-cut agri-food products are less stable than unprocessed materials from which they are made. The objective of this study was the development of a quality control system for fresh-cut agri-food products. In this study, vitamin C, minerals, residual heavy metals, and pesticides of various fresh-cut agri-food products were analysed. Sensory evaluation revealed that overall acceptability scores were less than expected in most products since fresh-cut products are likely to cause browning and easily lose their freshness. Therefore, the postharvest technologies that can maintain the quality, freshness and appearance must be supplied. Although vitamin C and minerals are main nutrients that can be supplied from salads, the results showed that vitamin C and mineral contents were very small and extremely small compared with the values from the food composition tables. It is possible that vitamin C and most minerals that are easily destroyed were lost through minimal processes like peeling and cutting. In safety side, the remaining heavy metal contents of fresh-cut agri-food were investigated and the results showed that copper and lead existed in some products because only cadmium in agricultural produce is controlled by the minimum standard of heavy metal contents in Korea. No residual pesticides were detected in all products.

Fresh-cut 채소 제품이 소비자에 의해 선택되어 소비되려면 이의 친환경적 원료생산과 가공, 포장, 서빙에 이르는 전 과정에서 체계적인 품질관리가 이루어져야 하며 갈변제어, 연화제어 및 미생물적 제어 등 관련 기술의 연구개발이 요구된다. 본 연구에서는 시중 유통 판매되고 있는 fresh-cut 채소제품의 품질을 비교평가하기 위해 현재 유통되고 있는 9개사 제품을 선정하였으며, 관능검사를 포함하여 vitamin C, 무기질, 중금속 함량, 잔류농약 및 미생물오염 정도를 조사하였다. 관능평가에서는 갈변 등 품질변화로 인해 전반적인 기호도가 그다지 높지 않았다. 채소류에서 중요 영양성분인 vitamin C 함량은 9개사 모든 제품의 주재료인 양상추에서 거의 검출되지 않았고 다른 채소류의 vitamin C 함량 역시 식품성분표보다 소량이었다. 무기질 함량 역시 극히 소량이었는데, 이는 박피, 절단 등의 최소 가공 공정을 거치면서 파괴되기 쉬운 vitamin C와 무기질이 대부분 손실되었기 때문으로 사료된다. 안전성측면에서 평가한 잔류 중금속 함량의 경우 몇 개의 제품에서 구리와 납이 소량 검출되었으며 잔류농약은 검출되지 않았다.

Keywords

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