Free Sugar and Organic Acid Contents of Pollens from Quercus spp. in Korea
2017
Park, Y., National Institute of Forest Science, Suwon, Republic of Korea | Kim, J.H., National Institute of Forest Science, Suwon, Republic of Korea | Kim, S.H., National Institute of Forest Science, Suwon, Republic of Korea
In this study, we analyzed free sugar and organic acid content in pollens of four different species of Quercus in Korea. Glucose and sucrose were the major sugar components of pollen. The highest sucrose content of pollen was 16.03g/100g in Q. variabilis. The sweetness index, which plays important role of taste, was also calculated from the content of sucrose and glucose. The sweetness of pollen were different with other species. The highest sweetness of pollen was 21.98 in Q. variabilis. Main organic acids detected in pollen were citric acid, malic acid and fumaric acid. The highest citric acid and malic acid content in pollen were 3.11g/kg (Q. mongolica) and 5.62g/kg (Q. mongolica), respectively.
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