How to distinguish between wild blueberries and artificially cultivated blueberries
How to distinguish between wild dried blueberries and artificially cultivated dried blueberries
The efficacy of wild blueberries
The key points for identification are as follows:
Characteristic
Wild Blueberry
Artificial cultivation of blueberries
Diameter 4-8mm, nearly spherical, with a surface covered in white frost
10-20mm， Flat round, with thin white frost
Deep purple black runs through the entire flesh (due to the pigment content in the whole fruit)
Only purple skin, gray white or light green flesh
Outstanding acidity (pH 2.8-3.2), slightly astringent aftertaste
Sweet and Sour Balance (pH 3.8-4.2), No astringency
Fruit shape
Flesh section
Taste
The key points for identification are as follows:
Characteristic
Wild dried blueberries
Artificial cultivation of dried blueberries
Particle diameter 3-5mm, deep and irregular surface wrinkles
6-8mm, with a smooth and flat circular surface
Deep purple black, transparent without red tone
Purple red, with reddish brown edges
After soaking in warm water, it returns to a 70% spherical shape, and the juice turns ink blue
After expansion, it remains flat and the juice is light purple red
Natural fruity aroma, sugar content ≤ 15% (only self fructose)
Most add malt syrup (sugar content ≥ 35%)
Form
Colour
Rehydration experiment
Add detection
1.Ultra high antioxidant capacity
• The anthocyanin content is 2-4 times higher than that of artificially grown blueberries (according to data from the US Department of Agriculture), which can effectively eliminate free radicals and delay cellular aging.
• The ORAC (antioxidant capacity index) is as high as 9621/100g, far exceeding the 4669 of ordinary blueberries.
2.Eye protection and improvement of night vision
• The content of delphinidin can accelerate the regeneration of rhodopsin and alleviate visual fatigue. Nordic studies have shown that regular consumption can improve visual acuity in low light environments.
3.Cardiovascular protection
• A Harvard University study found that consuming 150g of wild blueberries per week for one month can increase endothelial function by 1.5% and reduce the risk of arteriosclerosis.
4.Brain nerve protection
• Containing the unique Pterostilbene, which can penetrate the blood-brain barrier and improve memory and cognitive function, clinical trials have shown that it can delay the progression of Alzheimer's disease.
5.Anti inflammatory and intestinal regulation
• Polyphenolic substances inhibit harmful gut microbiota and promote the proliferation of probiotics. Canadian studies have shown that their anti-inflammatory effects are equivalent to low-dose aspirin.
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