Benefits of Nattokinase
Nattokinase is an enzyme that is extracted from natto, a traditional Japanese food made from soy.
Natto is a sticky soybean-based fermented food. It has a slightly bitter, earthy taste that some describe as similar to aged cheese. Natto consumption is believed to be a significant contributor to the longevity of the Japanese population
As part of alternative medicines practice, nattokinase has been used for the following:
Angina
Atherosclerosis
Deep vein thrombosis
Hypertension (high blood pressure)
Myocardial infarction (heart attack)
Peripheral artery disease (PAD)
Stroke
Varicose veins
https://botanicalinstitute.org/nattokinase/
How can I make nattō?
The process of making fresh nattō involves the following 10 steps. Before you begin, be sure that you sterilize all of equipment you will use by dipping it in a pot of boiling water.
Wash and soak one pound of dried soybeans for 24 hours.
Boil or steam the beans for three to six hours until soft.
Drain and transfer the soybeans into a bowl.
Mix one teaspoon of Bacillus subtilis powder with two tablespoons of sterilized water.
Pour the spore mixture over the beans and stir.
Transfer the beans to a sterilized dish so they are no more than one inch deep.
Place a piece of cheesecloth over the dish and secure with a rubber band.
Place the dish in the oven with the oven light turned on but the temperature turned off. For most ovens, this makes for an internal temperature of 74 and 79 degrees F. Some recipes call for oven temperatures of 100 to 115 degrees F, but this may pose a fire hazard if there is a gas pilot light.
Leave the soybeans in the oven 22 to 24 hours, checking the temperature occasionally.
Remove the dish from the oven and place it in the refrigerator overnight with the cheesecloth left on. Stir before eating.
When does nattō expire?
Nattō can be stored for up to one week in the refrigerator and up to two months in the freezer.
https://www.verywellhealth.com/what-is-nattokinase-89831
Bacillus subtilis
https://probiotics.org/bacillus-subtilis/