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Objective To investigate the vitamin content in common 48 kinds of desserts in Gansu Province based on the requirements of national nutritional monitoring. Methods A total of 48 kinds of common desserts from Gansu Province were analyzed. The content of vitamin A, carotene, vitamin B1, vitamin B2, vitamin C, vitamin E and vitamin E fractions, i.e. (α-tocopherol, β-tocopherol, γ-tocopherol and δ-tocopherol) were determined by high performance liquid chromatography method as specifiedin the national standard for food safety. Results The results showed that among the 48 kinds of desserts, except for vitamin B1, the detection rates of other vitamins ranged from high to low: Vitamin E>vitamin B2>vitamin A>carotene>vitamin C; the content of vitamin A in the sample is ND-549.000 μg/100 g, median of 20.000 μg/100 g; the content of carotene was ND-142.650 μg/100 g, median of 0.250 μg/100 g. The content of vitamin B2 was ND-0.226 mg/100 g, median of 0.090 mg/100 g; The content of vitamin C was ND-4.740 mg/100 g, median of 0.250 mg/100 g. The detected content of vitamin E (sum of various subtypes) ranges was ND-549.000 mg/100 g, median of 21.650 mg/100 g; the content of α-tocopherol was ND-2.690 mg/100 g, median of 1.015 mg/100 g; the content of β-tocopherol was ND-1.240 mg/100 g, median of 0.020 mg/100 g; the content of γ-tocopherol was ND-11.810 mg/100 g, median of 1.135 mg/100 g; the content of δ-tocopherol was ND-2.040 mg/100 g, median of 0.020 mg/100 g. Conclusion The fat-soluble vitamins are generally detected at higher levels in the samples from Gansu Province, while the water-soluble vitamins are detected at lower levels.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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