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IRRI Finds Pigmented Rice Lines with Anti-Cancer Activity

2 June 20251 min read
SCIENCE & TECHNOLOGYIRRI Finds PigmentedRice Lines withAnti-Cancer Activity2 June 2025safalsetu.com

Why in the news

The International Rice Research Institute (IRRI), Philippines, reported rice varieties with antioxidant and anti-cancer properties in the journal Food Hydrocolloids and Health.

Key facts

  • 6 pigmented lines showed very high antioxidants and strong effects on colorectal and breast cancer cell lines.
  • Extracts were toxic only to cancer cells, unlike many chemotherapy drugs, suggesting a safer profile.
  • Biomolecules were absorbed in the gastric phase (in vitro bioavailability).
  • Cooking keeps about 70% of the benefits.
VarietyColourOrigin
Ketan HitamPurpleIndonesia
BalatinoPurplePhilippines
KintumanRedPhilippines

Supplement

  • Rice bran extract, made by ethanol extraction and microencapsulation, is a water-soluble multi-nutrient product.
  • A 7.5 μg/mL dose worked like some chemotherapy drugs in cell line tests.

Significance

  • Scope for functional foods and nutraceuticals for cancer prevention.
  • Fewer side effects than chemotherapy.

Exam angle

  • Institute: IRRI, Philippines.
  • Terms: pigmented rice, cytotoxicity, nutraceuticals.

Test yourself

1. How many pigmented rice lines did IRRI identify with very high antioxidant levels and anti-cancer effects?

Six pigmented lines out of 800 studied showed these properties.

2. Ketan Hitam, a purple rice highlighted in the IRRI study, comes from which country?

Ketan Hitam is listed as purple rice of Indonesian origin.

3. According to the IRRI findings, roughly how much of the antioxidant and anti-cancer benefit is retained after cooking the rice?

The notes state cooking retains about 70% of the benefits.