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두채단신

  • Korean Bean Sprouts Association
    • 물만먹고자라요
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    • no.18
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    • pp.30-31
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    • 2007
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협회동정

  • Korean Bean Sprouts Association
    • 물만먹고자라요
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    • no.19
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    • pp.74-75
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    • 2007
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Analyses of Free Amino Acids in Different Parts of Bean Sprouts by Different Cooking Methods and from Different Merchants

  • Kim, Ji-Hye;Lee, Kyung-Ae;Kim, Yong-Ho;Kim, Hee-Seon
    • Preventive Nutrition and Food Science
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    • v.14 no.4
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    • pp.316-322
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    • 2009
  • This study was performed to quantitatively analyze free amino acids in the bean sprouts of three different merchants by the parts and the cooking methods in order to evaluate the nutritional and sensory values of bean sprouts. Three merchant bean sprouts were analyzed from total, cotyledon and hypocotyls. Aspartic acid was the most common acid isolated from bean sprouts from all three merchants and was found more in the hypocotyls than the cotyledon. On the other hand, arginine, the second most common amino acid, was found more in the cotyledon than the hypocotyls while valine, the third or fourth most common amino acid in total bean sprout, occurred in a greater amount in hypocotyls than in cotyledons. After cooking, was the most concentrated amino acid in the liquid portion of both boiled bean sprouts and bean sprout soup was glutamic acid. Total bean sprouts from merchant C showed significantly higher contents of the most abundant amino acids, such as aspartic acid, arginine, alanine, serine, glutamic acid, isoleucine, leucine and tyrosine (p<0.05). After cooking, bean sprouts from merchant B showed less of a decrease in amino acid content in the solid parts than the products from merchants A and C. In conclusion, aspartic acid was the major amino acid in bean sprouts, regardless of the source, but after cooking, glutamic acid became the most abundant amino acid in the liquid part. Additionally, the pattern of release of the amino acids from the solid beans to the liquid portion during cooking was different with each merchant.

Antioxidant Activity and Quality Characteristics of Mung Bean Starch Gel prepared with Persimmon Powder (감 분말을 첨가한 청포묵의 항산화 활성 및 품질특성)

  • Choi, Hae-Yeon
    • The Korean Journal of Food And Nutrition
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    • v.26 no.4
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    • pp.638-645
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    • 2013
  • This study was conducted to investigate the effects of persimmon powder on the antioxidant activity and quality characteristics of mung bean starch gel. Mung bean starch gels were prepared with different amounts (0%, 1%, 3%, 5%, 7% and 9%) of persimmon powder. The antioxidant activity was estimated by the DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging activity and by the total phenolic acid content in the persimmon powder and mung bean starch gel. For analyzing the quality characteristics, syneresis, pH, color, texture profile analysis, and sensory evaluations were measured. The syneresis in the control group was higher than that in the treated group, but the mung bean starch gel prepared with 9% persimmon powder was higher than that of the control group (p<0.001). The pH, b values, total phenolic acid content, and DPPH free radical scavenging activity of mung bean starch gels significantly increased with increasing persimmon powder (p<0.001), while the L values and a values of the mung bean starch gels significantly decreased with increasing persimmon powder (p<0.001). In the texture profile analysis, the mung bean starch gel with 9% persimmon powder showed significantly lower levels of chewiness, gumminess, and cohesiveness (p<0.05). The hardness and springiness of the mung bean starch gel did not show any significant difference. The consumer acceptability score for the mung bean starch gel prepared with 7% persimmon powder ranked significantly higher than that for the other groups in overall preference, appearance, flavor, and color (p<0.05). From these results;we suggest that persimmon powder is a good ingredient for increasing consumer acceptability and the functionality of mung bean starch gel.

Correlation Analysis between Azuki Bean Quality Characteristics and Sediment Yield

  • Byong Won Lee;Seok Bo Song;Yeon Ju Ahn;Ji Ho Chu;Ji Yeong Kim;Myeong Eun Choi;San Ik Han;Chung Song Kim
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2022.10a
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    • pp.316-316
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    • 2022
  • Azuki bean is the important bean crop in Korea, and is traditionally used as a filling material for red bean porridge, rice cakes, and bread, as well as for sediment. So far, the National Insititute of Crop Science has developed azuki bean varieties for various uses, such as for sediment, tea, and azuki bean sprouts. Among azuki bean elite lines, 25 strains were used to analyze the correlation between red bean quality characteristics and sediment yield. The crude protein of red beans was 25.0-28.9%, ash content was 3.8-5.3%, and fat was 0.4-1.0%. As for the appearance quality characteristics of azuki bean, one hundred seed weight was 11.1-19.5 g, the length of seed was 6.45-8.49 mm, the width seed was 4.84-6.45 mm, and the withd/lenght ratio was 0.72-0.89. When the azuki bean were boiled, the thickness of the seed coat was 0.14-0.27 mm and the length ratio of seed was 0.65-0.76 mm, showing that the length of seed was slightly larger than the width. The yield of azuki bean sediment was 239-284% for whole red bean paste, and 144-203% for fine azuki bean paste. As a result of analyzing the correlation between the quality characteristics of azuki beans, such as protein, husk and seed weight, and the yield of azuki bean sediment, the yield of whole azuki bean sediment showed a negative correlation with the seed coat thickness and the length ratio of the original grain at -0.62 and -0.45, respectively. The yield of fine sediment showed a negative correlation with the length ratio of whole azuki beans at -0.49, and a positive correlation with that of white beans at 0.41. However, protein and ash content did not show any correlation with sediment yield. In view of the above results, it is thought that it would be better to have a high seed weight or a low width/length ratio of seed to develope azuki bean cultivar for sediment.

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