Japanese believe that it contains rich amino acids and natural products, and has many health benefits:
- Stabilizes blood pressure
- Improves blood circulation
- Promotes digestion and reduces constipation
Kurozu is also considered a healthy drink. Here is a recipe for home-made Kurozu drink:
- Milk: 150 mL
- Kurozu: 20-30 mL
- Honey: some
Kurozu has been reported to have anti-cancer activity in vivo in rats and in vitro in human cancer cells. A research study published in September of 2018 reported that Kurozu and the solid sediment showed antithrombotic activity in mice. In this study, researchers fed mice a Kurozu-rich diet for four weeks, then the mice were injected with lipopolysaccharide (LPS), which is a bacterial toxin that induces a strong response in mammalian immune system. Researchers then evaluated the total and active levels of an inflammation biomarker – plasminogen activator inhibitor-1 (PAI-1) – using ELISA kits (Molecular Innovations, Novi, MI, USA).
PAI-1 plays an important role in fibrinolysis and elevated PAI-1 suppresses the normal fibrinolytic system. Interestingly, in this study, Kurozu diet significantly blocked LPS-induced increases in PAI-1 levels in mice. In clinic, elevated levels of PAI-1 are observed in various prothrombotic states including obesity, diabetes, insulin resistance and hypertension. The authors indicated that Kurozu and solid sediment may serve as a food supplement for people with obesity, diabetes and hypertension.
Naoki Ohkura; Fumiko Kihara-Negishi; Akira Fujii; et al. Effects of Fermented Rice Vinegar Kurozu and Its Sediment on Inflammation-Induced Plasminogen Activator Inhibitor 1 (PAI-1) Increase. Food and Nutrition Sciences. Sep 2018 doi: 10.4236/fns.2018.93018
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