Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 55, Issue 20, Pages 8054-8061Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jf070772f
Keywords
bioactive; carotenoids; fatty acids; harvest; phytosterols; sea buckthorn; tocopherols; tocotrienols
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The effect of the harvest time on oil-based bioactive compounds in sea buckthorn berries (Hippophae rhamnoides L. ssp. sinensis) was investigated. Sea buckthorn berries were collected at early maturity (September), maturity (November), and postmaturity (January) during the 2003-2004 harvest year. Whole berries were analyzed for physical characteristics, and fruit and seed fractions were analyzed for bioactive content. November-harvested berries yielded the highest values for berry sizes, CIELab factor a*, and total carotenoid content in the fruit fraction (p < 0.05). September yielded significantly higher (p < 0.05) levels of major compounds, (x-tocopherol and P-sitosterol, in the fruit fraction. Seed characteristics and bioactive compounds did not vary significantly with respect to the harvest time (p > 0.05). These results have identified the most suitable level of maturity for the optimization of certain compounds and the losses that may occur with winter harvest, commonly practiced in cold climates.
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