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KMID : 1134820110400121757
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Journal of the Korean Society of Food Science and Nutrition
2011 Volume.40 No. 12 p.1757 ~ p.1763
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Physico-Chemical Properties of Broccoli Sprouts Cultivated in a Plant Factory System with Different Lighting Conditions
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Kim Tae-Su
Lee Sung-Pyo
Park So-i
Lee Jin-Young
Lee Soo-Yeon
Jun Hye-Ji
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Abstract
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The physico-chemical properties of broccoli sprouts cultivated in a plant factory system with different lighting conditions were investigated. We reported that there were significant differences among the chemical and nutritional properties of the broccoli sprouts grown under different light sources. Two kinds of sugars (glucose and fructose) were detected in the plants. The amount of glucose was 2.94∼3.12% and that of fructose was 1.54∼2.04 %. Total chlorophyll was 1,157±0.004 mg% and chlorophyll-a 777±0.01 mg%. All over the test materials, 2 kinds of organic acids (citric acid and malic acid) were detected. The level of citric acid was 908∼1,136 mg% and its highest level was under the (Blue LED) light source. The level of malic acid was 514∼834 mg% and its highest level was under the (Red LED) light source. Seven different minerals were also analyzed. The amount of K was 518 mg% and its amount was significantly higher than that of Mg or Na. There were also negligible amounts of Zn, Fe and Cu. The amounts of vitamin A, C and E under the Red LED were, 860.62±0.02 μgRE, 134.570±0.14 mg% and 1.44±0.1 IU. The amounts under the Blue LED were, 432.48±0.05 μgRE, 137.05±0.1 mg% and 1.11±0.12 IU. The amounts under both Red and Blue LEDs were, 667.33±0.11 μgRE, 118.50±0.09 mg% and 1.47±0.1 IU. And finally, the amounts under a White LED were, 640.25±0.08 μgRE, 119.87±0.07 mg% and 1.31±0.15 IU. In this study, significant changes were shown in the chemical and nutritional properties of the broccoli sprouts. These findings indicate that LED light sources stimulated germination of the plants.
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KEYWORD
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broccoli sprouts, plant factory system, LED light, vitamin contents, chemical components
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