Vitamin b6 content in fruits
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Vitamin B6 Content in Fruits: Overview and Key Findings
Vitamin B6, which includes the forms pyridoxine, pyridoxal, and pyridoxamine, is present in a wide range of fruits, but its content varies significantly depending on the type of fruit, its variety, ripeness, and even storage conditions 1236.
Highest Vitamin B6 Fruits and Variability
Among commonly consumed fruits, passionfruit and apple mango have some of the highest vitamin B6 levels, with passionfruit containing up to 198.32 μg/100 g and apple mango 114.10 μg/100 g . Gold kiwi ('Zespri') and green kiwi ('Hayward') also show high vitamin B6 content, at 116.3 μg/100 g and 78.7 μg/100 g, respectively . Apples, grapes, peaches, and strawberries generally have lower levels, ranging from about 2.3 to 37.6 μg/100 g depending on the variety and region . Persimmons can also be a good source, with some varieties reaching up to 72.7 μg/100 g .
Influence of Ripeness, Variety, and Storage
The vitamin B6 content in fruits can change based on ripeness and variety. For example, plums, kiwis, and persimmons show notable differences in B6 levels depending on their stage of ripeness and specific variety 13. Regional differences and harvest times also affect B6 content, as seen in apples and grapes, where variations of up to 22.8 μg/100 g and 7.5 μg/100 g, respectively, have been observed . In avocados, simple storage techniques like short-term cold storage can increase vitamin B6 content by up to 2.5 times, and exogenous application of vitamin B6 can further influence the fruit’s nutritional profile and shelf life .
Glycosylated Vitamin B6 in Fruits
Some fruits contain a portion of their vitamin B6 in a glycosylated (bound) form, which may affect its bioavailability. For example, orange juice was found to have about 47% of its total vitamin B6 in this bound form .
Comparison with Other Plant Foods
While fruits are a source of vitamin B6, their content is generally lower than that found in nuts, oilseeds, legumes, and whole cereals. Among plant foods, fruits tend to have the lowest average vitamin B6 content, but there is still considerable variation among different types and varieties .
Conclusion
Fruits can contribute to dietary vitamin B6 intake, with passionfruit, apple mango, and certain kiwis being particularly rich sources. The vitamin B6 content in fruits is influenced by variety, ripeness, region, and storage conditions. While fruits generally have lower B6 levels compared to other plant foods, they remain an important part of a balanced diet, especially when consumed as part of a varied selection.
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