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KMID : 1160620090140040335
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Preventive Nutrition and Food Science
2009 Volume.14 No. 4 p.335 ~ p.342
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Production of Carrot Pomace Fortified with Mucilage, Fibrinolytic Enzyme and Probiotics by Solid-state Fermentation Using the Mixed Culture of Bacillus subtilis and Leuconostoc mesenteroides
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Jung Hye-Won
Lee Sam-Pin
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Abstract
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Bioactive compounds were produced from carrot pomace by solid-state fermentation using Bacillus subtilis HA and Leuconostoc mesenteroides. The carrot pomace (CP) fermented by B. subtilis HA with 3% monosodium glutamate (MSG) showed higher production of various bioactive compounds, with 1.64 Pa·sn of consistency, 2.31% of mucilage content, 16.95 unit/g of fibrinolytic enzyme activity, 35.3 unit/g of proteolytic activity and 37.5 mg% of tyrosine content. The mucilage production was greatly dependent upon the concentration of MSG added. Most MSG added in CP was converted into mucilage (2.3%) including 0.83% poly-γ-glutamic acid (PGA) with 1,505 kDa of molecular weight. The CP fermented secondly by Leuc. mesenteroides showed acidic pH and lower consistency. However, the fibrinolytic and proteolytic activities were increased. The secondly fermented CP showed the viable cell counts with 2.5×108 CFU/g of B. subtilis HA and 3.7×109 CFU/g of Leuc. mesenteroides, respectively. The freeze-dried fermented CP showed 2.88 Pa·sn of consistency, 24% of mucilage content and 104.9 unit/g of fibrinolytic enzyme activity, respectively. Also, the powder of fermented CP indicated viable cell counts of 8.0×107 CFU/g of B. subtilis and 4.0×108 CFU/g of Leuc. mesenteroides. Therefore, the fermented CP that was fortified with dietary fibers, fibrinolytic enzyme and probiotics could be utilized as valuable ingredients of functional foods in food or cosmetic industries.
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KEYWORD
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carrot pomace, mucilage, fibrinolytic enzyme, Bacillus subtilis, Leuconostoc mesenteroides
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