CATDOLL : CATDOLL: Where does laver grow? How long is the shelf life of laver?

Porphyra is a type of seaweed that grows in the intertidal zone. Its distribution range covers the cold zone, temperate zone, subtropical zone and tropical zone. It is currently cultivated on a large scale in my country, Japan, South Korea and other countries. Porphyra is a general term for various symbiotic algae such as Porphyra tannica, Porphyra yezoensis and Porphyra spicata of the algae family. It contains chlorophyll and pigments such as carotene, lutein, phycoerythrin and phycocyanin. Porphyra is not a plant because it does not have a true duct tissue.

1. Where does laver grow?

1. The laver production areas in my country are mainly distributed in coastal areas, such as Fujian and southern Zhejiang. The main laver produced in these areas is Porphyra haitanensis. Some northern regions of my country also produce laver, but the laver produced is generally Porphyra yezoensis. In terms of systematic taxonomy, laver belongs to the Rhodophyta, Protophyta, Rhodophyta, and Rhodophyta. It is a seaweed that grows in the intertidal zone and is distributed in cold, temperate, subtropical and tropical waters. It is currently cultivated on a large scale in my country, Japan, South Korea and other countries.

2. Porphyra is a general term for various symbiotic algae such as Porphyra tannica, Porphyra yezoensis, and Porphyra spicata of the family of algae. It mainly contains chlorophyll, carotene, xanthophyll, phycoerythrin, phycocyanin and other pigments. Due to the differences in the content ratio, different types of Porphyra appear in purple-red, blue-green, brown-red, brown-green and other colors, but the purple color is the most common, hence the name.

3. Porphyra is not a plant. Porphyra is mistaken for a plant because it can photosynthesize, but it is not a true plant because it does not have vascular tissue (xylem and phloem), unlike aquatic plants.

2. How long is the shelf life of seaweed?

1. The shelf life of laver is 12 months. Generally, as long as it is properly stored, the shelf life of laver can reach about 12 months. Laver can be stored in a black bag and then stored in a low temperature and dry environment, so that it will not spoil easily and the taste will not change.

2. Be careful, you cannot eat moldy laver. Moldy laver will produce very high levels of mycotoxins, such as aflatoxin and ochratoxin, which may damage the liver and kidneys, and some may even cause neurological diseases. Since laver is dark in color, mildly moldy laver is almost invisible to the naked eye, but if the laver is red, it is likely caused by mold.

3. If you need to store a large amount of laver, you can dry it and put it into a vacuum compression bag, then evacuate the air and seal it for storage. You must not eat laver in excess. The iodine content in laver is very high, and eating too much will increase the risk of hyperthyroidism. Blue-purple laver cannot be eaten. If the laver turns blue-purple after being soaked in water, it means that it has been contaminated by toxic cyclic polypeptides. These toxins cannot be removed even by steaming, so they cannot be eaten.