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http://dx.doi.org/10.3746/jkfn.2008.37.4.465

Physicochemical Characteristics of Black Garlic (Allium sativum L.)  

Choi, Duk-Ju (Dept. of Hotel Culinary Arts & Bakery, Namhae College)
Lee, Soo-Jung (Dept. of Foods and Nutrition, Institute of Agriculture and Life Sciences, Gyeongsang National University)
Kang, Min-Jung (Dept. of Foods and Nutrition, Institute of Agriculture and Life Sciences, Gyeongsang National University)
Cho, Hee-Sook (Dept. of Culinary Arts, Woosong University)
Sung, Nak-Ju (Dept. of Foods and Nutrition, Institute of Agriculture and Life Sciences, Gyeongsang National University)
Shin, Jung-Hye (Dept. of Hotel Culinary Arts & Bakery, Namhae College)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.37, no.4, 2008 , pp. 465-471 More about this Journal
Abstract
Physicochemical characteristics of black garlic were analyzed. Colorimetry measurement showed that the black garlic, compared with fresh and steamed garlics, was the highest in a value and the lowest in L and b values. Crude lipid, crude protein, and total sugars were the highest in black garlic, which was followed by steamed and fresh garlic. On the other hand, moisture content was the lowest in the black garlic and the highest in the fresh garlic. The pH of garlics was ca. 6.8, 6.5, and 4.4 in fresh, steamed, and black garlic, respectively, which indicated that garlics tended to be acidified with the thermal processing. Total pyruvate and total thiosulfinates were the lowest in steamed garlic ($77{\mu}mol$/g and 0.07 OD/g for each) and the highest in black garlic ($278{\mu}mol$/g and 0.77 OD/g). Arabinose and galactose were detected only in black garlic and their contents were 1.6 and 13 mg/100 g, respectively. Free sugars such as glucose, sucrose and fructose were the highest in the order of fresh, steamed, and black garlic. Potassium was a predominant mineral in all garlics, constituting 76% of total minerals. Glutamic acid, arginine, and aspartic acid were the major composition amino acids in all garlics, regardless of processing conditions. 15 kinds of free amino acids were detected in fresh and steamed garlic, while five more free amino acids, O-phosphoethanolamine, and urea were additionally detected in black garlic.
Keywords
steamed garlic; black garlic; total pyruvate; thiosulfinates;
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Times Cited By KSCI : 8  (Citation Analysis)
Times Cited By SCOPUS : 12
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