Knowledge: Blackcurrants (Ribes nigrum)

Blackcurrants (Ribes nigrum)

Blackcurrants (Ribes nigrum) originate from Northern Asia and Central and Eastern Europe and is widely cultivated in most countries of Europe as well as New Zealand. The plant produces purple-black, sweet, aromatic, edible and seed-containing berries of up to 12 mm in diameter. The berry fruit has a glossy skin with a persistent apical calyx. Blackcurrant fruits and leaves have been used as both Asian and European traditional medicine for the treatment of a variety of ailments.

Black currants are amazingly high in vitamins and antioxidants. Like other dark-colored fruits and vegetables, these berries are rich in anthocyanins, a class of polyphenols known to have wide-ranging health benefits such as slowing down the effects of dementia or giving anti-inflammatory properties to reduce the effects of rheumatoid arthritis. Blackcurrants have been reported to improve cardiovascular health and lower the risk of glaucoma.

Anthocyanins are found mainly in blackcurrant fruit skins and constitute nearly 90% of total polyphenolic compounds present.

Blackcurrant can be included in fruit juice blends to provide added health benefits and delicious flavour. It also popular to be made into jams, jellies, syrups, candies and blackcurrant extract.

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HEALTH BENEFITS

Good for Skin

In vivo study on effect of blackcurrant on skin
Subject Ovariectomized rats (n=10)
Duration 3 months
Dosage 3% blackcurrant extract
Group
  1. Normal rats
  2. Ovariectomized rats
  3. Ovariectomized rats + treatment
Parameters analyzed Collagen thickness, elastin number, hyaluronic acid expression
Outcomes Visible benefits

Blackcurrant extract increased the level of collagen, elastin and hyaluronic acid in skin.

Functions Phytoestrogen present in blackcurrant has beneficial effect on skin

Anti Inflammation of Obesity

In vivo study on effect of blackcurrant on obesity
Subject Male rats (n=11)
Duration 12 weeks
Dosage 0.1% blackcurrant extract
Group
  1. High fat diet
  2. High fat diet + treatment
Parameters analyzed Body weight, adipocyte size, expression of inflammation markers and metabolic genes
Outcomes Visible benefits

Blackcurrant supplementation decreases obesity-induced inflammation in adipose tissue and splenocytes by modulating energy metabolism in skeletal muscle.

Functions Blackcurrant could reduce obesity-induced inflammation, particularly macrophage infiltration in the adipose tissue.

Improve Insulin Sensitivity

In vivo study on effect of blackcurrant on obesity
Subject Male rats (n=50)
Duration 8 weeks
Dosage 100, 300, and 900 mg/kg body weight per day
Group
  1. High fat diet
  2. High fat diet + treatment
  3. High fat diet + metformin
Parameters analyzed Energy metabolism, insulin tolerance, hyperglycemic clamp
Outcomes Visible benefits

  • BC intake decreased oxidative stress and inflammation and suppressed apoptosis but increased β-cell mass.
  • BC reduced carbohydrate digestion and absorption and promoted glucose metabolism.
Functions BC could improve insulin sensitivity and improve glucose uptake in insulin-deficient individuals.

Reduce Cholesterol

In vivo study on effect of blackcurrant on cholesterol
Subject Young healthy women (n=12)
Duration 29 days
Dosage 100g blackcurrant powder daily
Group
  1. 4 days
  2. 29 days
Parameters analyzed Serum lipids
Outcomes Visible benefits

  • There were no effects on lipids on day 4 of BCE intake.
  • The total cholesterol level decreased on day 29.
  • The levels of total very-low-density lipoprotein (VLDL) cholesterol, small VLDL cholesterol, and large low-density lipoprotein cholesterol were significantly decreased.
Functions Daily intake of BC has a hypocholesterolemic effect in healthy women.

Reference

  1. https://www.mdpi.com/2072-6643/10/4/495
  2. https://www.sciencedirect.com/science/article/abs/pii/S0955286314001181
  3. https://www.mdpi.com/2076-3921/10/5/756
  4. https://www.mdpi.com/1420-3049/26/13/4085
Blackcurrant extract powder

Blackcurrant (Ribes nigrum) Standardized Extract Powder

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