Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effect of a Refrigerator with LED on Functional Composition Changes and Freshness Prolongation of Cabbage

냉장고의 LED부착이 양배추의 선도 연장에 미치는 영향

  • Published : 2007.04.30
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Abstract

A LED (light emitting diode) was attached inside the cold $(4^{\circ}C)$ compartment of a home refrigerator to investigate a possible effect on freshness prolongation of cabbage over 10 d of storage. The LED increased chlorophyll synthesis, inhibited vitamin C degradation and increased the content of phenolics, compared to values measured in cabbages stored in an identical refrigerator without the LED. In the refrigerator with the LED, the color of cabbage leaves remained green for a period fourfold longer than that seen in a conventional refrigerator. Vitamin C content was twice that of a conventionally stored cabbage, and phenolic consent was 14% higher in the LED-illuminated vegetables.

LED (light smiling diode)를 가정용 냉장고에 부착하여 양배추의 선도 유지에 미치는 영향을 조사하였다. 가정용 냉장고에 부착된 LED의 조사가 저장 중 양배추의 품질변화에 미치는 가장 큰 효과는 엽록소 합성, 비타민 C 및 페놀성분의 함량 증가였다. LED가 부착된 냉장고에 저장된 양배추는 절단면이 흰색에서 녹색으로 변화하였으며, 따라서 절단면의 Hunter a값이 일반 냉장고에 저장된 양배추에 비해 현저히 낮은 수치를 나타내었다. 일반 냉장고$(4^{\circ}C)$에 10일간 저장된 양배추에 비해 LED가 부착된 냉장고에 저장된 양배추의 엽록소 함량이 4-6배정도 높았으며, LED조사 시 저장 중 비타민 C함량은 약 2배정도, 페놀성분의 함량은 14%정도 증가시켜 양배추의 영양성분을 증가시키는 효과가 있었다.

Keywords

References

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