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Next time when you eat an apple for extra fibre, flavonoids and flavour, remember that you are also gulping down about 100 million bacteria, and whether these are good or bad microbes may depend on how the apples were grown.
The majority of the bacteria are in the seeds, with the flesh accounting for most of the remainder. So, if you discard the core, your intake falls to nearer 10 million. The question is: Are these bacteria good for you? "Freshly harvested, organically-managed apples harbour a significantly more diverse, more even and distinct bacterial community, compared to conventional ones," explained Berg. Specific groups of bacteria known for health-affecting potential also weighed in favour of organic apples.
"Escherichia-Shigella -- a group of bacteria that includes known pathogens -- was found in most of the conventional apple samples, but none from organic apples. For beneficial Lactobacilli -- of probiotic fame -- the reverse was true," said the researchers.
Methylobacterium, known to enhance the biosynthesis of strawberry flavour compounds, was significantly more abundant in organic apples, "especially on peel and flesh samples, which in general had a more diverse microbiota than seeds, stem or calyx", said the researchers.
The results also mirrored findings on fungal communities in apples. "Our results agree remarkably with a recent study on the apple fruit associated fungal community, which revealed the specificity of fungal varieties to different tissues and management practices," said Birgit Wasserman, lead author of the study.
---IANSFor more interesting stories, Download the Lopscoop application from Google play store and earn extra money by sharing it on social media
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