Nutritional compositions in Trichosanthes kirilowii Maxim seeds and seed oils influenced by geographical environment
In order to investigate and compare the nutrients of Trichosanthes kirilowii Maxim seeds from different locations, T. kirilowii seeds were obtained from Changxing (Zhejiang Province), Anguo (Hebei Province), Jincheng (Shanxi Province), and Binzhou (Shandong Province) at the same harvest season. The...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2014-11-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2014.05.081 |
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| Summary: | In order to investigate and compare the nutrients of Trichosanthes kirilowii Maxim seeds from different locations, T. kirilowii seeds were obtained from Changxing (Zhejiang Province), Anguo (Hebei Province), Jincheng (Shanxi Province), and Binzhou (Shandong Province) at the same harvest season. The seeds were shelled, crushed for the analyses of protein, amino acid, lipids, fatty acids, tocopherol and minerals. The results showed that the protein content ranged from 28.68%(Changxing sample) to 40.91% (Anguo sample). Total amino acid content ranged from 686.9 to 863.3 mg/g protein, and leucine was the abundant essential amino acid (EAA), while glutamic acid and arginine were two major non-essential amino acids (non-EAA). The total lipid content ranged from 22.81% in Anguo sample to 49.41% in Changxing sample, and 9c, 11t, 13c-C18:3 (punicic acid, PA) was the predominant fatty acid (33.09% 50.75%), followed by C18:2n-6 (linoleic acid, LA), C18:1n-9, C16:0, C18:0, and C14:0. The lipid contents and fatty acid compositions were both varied among different locations. The α-and γ-tocopherol contents of T. kirilowii seeds kernel were also determined, and α-tocopherol ranged from 67.8 μg/g seed kernel mass (SM) in Anguo sample to 350.7 μg/g in Changxing sample. Jincheng sample had the highest content of copper (Cu)(6.01 mg/kg SM), iron (Fe)(136.94 mg/kg SM) and selenium (Se)(212.29 μg/kg SM), while Changxing sample had the lowest contents of Fe, Zn and Se, which were 98.18 mg/kg SM, 22.89 mg/kg SM and 35.06 μg/kg SM, respectively. In conclusion, the T. kirilowii seeds are abundant in nutrients, such as lipid, protein, PA, polyunsaturated fatty acid and Se. Location and climate may affect the nutrients and further studies will be needed in this regard. From the data, it is obvious that Anguo sample will be a better choice as a source location of T. kirilowii seeds when using it in functional food. |
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| ISSN: | 1008-9209 2097-5155 |