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Assessment of Vitamin and Carotenoid Concentrations of Emerging Food Products: Edible Microgreens.
MedLine Citation:
PMID:  22812633     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Microgreens, (seedlings of edible green vegetables and herbs) have gained popularity as a new culinary trend over the past few years. Although small in size, microgreens can provide surprisingly intense flavors, vivid colors and crisp texture and can be served as an edible garnish or a new salad ingredient. However, no scientific data is currently available on the nutritional content of microgreens. The present study was conducted to determine the concentrations of ascorbic acid, carotenoids, phylloquinone and tocopherols in 25 commercially available microgreens. Results showed that different microgreens provided extremely varying amounts of phytonutrients. Total ascorbic acid contents ranged from 20.4 to147.0 mg per 100 g fresh weight (FW), β-carotene, lutein/zeaxanthin and violaxanthin concentrations ranged from 0.6 to 12.1, 1.3 to 10.1 and 0.9 to 7.7 mg/100 g FW, respectively. Phylloquinone level varied from 0.6 to 4.1 μg/g FW, meanwhile, α-tocopherol and γ-tocopherol ranged from 4.9 to 87.5 and 3.0 to 39.4 mg/100 g FW, respectively. Among the 25 microgreens assayed, red cabbage, cilantro, garnet amaranth and green daikon radish had the highest concentrations of ascorbic acids, carotenoids, phylloquinone, and tocopherols, respectively. In comparison with mature leaves nutritional concentrations (USDA National Nutritional Database), the microgreen cotyledon leaves possessed higher nutritional densities. The essential vitamin and carotenoid concentrations data may provide a scientific basis for evaluating nutritional values of microgreens and contribute to food composition database. These data also may be used as a reference for health agencies' recommendations and consumers' choices of fresh vegetables.
Authors:
Zhenlei Xiao; Gene E Lester; Yaguang Luo; Qin Wang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-18
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  -     ISSN:  1520-5118     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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