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After the water laver tore pull continuously expert plastic is not fake

Time:2017-05-26 21:36:10
  Taiwan Strait network February 22nd hearing, according to the Xiamen Evening News reported recently, a paragraph of "plastic" seaweed video circulated in the WeChat circle of friends. In the video, a lady angrily showed everyone the seaweed she bought. She took out a few pieces and soaked them in the water, and then pulled them out. Finally, the woman concluded: "no wonder you always feel chewed and cracked during the eating process. They are made of waste black plastic bags."."
Is that really the case? Reporters on the matter to the relevant experts to verify.
"This should be a misconception," said Zheng Jiemin, a biology teacher at the Xiamen ocean college. The reason for the "constant chewing" is probably the varietal difference. The northern coastal production of Porphyra yezoensis, thin and crisp, can be used to do the seaweed; Fujian produces laver, flexibility is strong, the water is hard to tear; Guangdong produces seaweed than Fujian produce more hard, more difficult to break.
Zheng Jiemin said that the growth environment is different, leading to the difference in taste of seaweed. In general, the higher the temperature where the laver toughness is stronger, more difficult to eat off. The species of seaweed found in this video may be from Guangdong. At the same time, the growth of seaweed at different times, the taste is not the same, the first harvest of seaweed is relatively tender.
Zheng Jiemin said, bubble hair laver to use boiling water, soak seaweed with water, it is easy to spread out, soaked in cold water, seaweed, mostly bad chewing.
Reporters also on the matter to engage in seaweed cultivation for many years, farmers, households Qiu can verify. Qiu believes that the black plastic bags made seaweed is absolutely nonsense. Just a little seaweed and a fire, you can tell it right away. Plastics are chemicals that burn black smoke when they burn, while laver does not. "Break" and "tough", in addition to the different varieties of regional differences, and harvest time on laver.
[popularization of Science]
Laver cutting is graded
The cutting of laver is divided into frequency, and the finished laver can grow again. The first harvesting seaweed called head laver, back in turn called two water, Sanshui, four water, five water or water six.
In Xiamen small Dadeng sea water laver grow need 40-45 days, 15-20 days after every cutting time.
Water laver yield is low, also the most tender and smooth. Finally, picking called "end water laver, flexibility is very strong, it is difficult to break too tough. However, specifically, a few laver is difficult to judge by its appearance. When choosing, try to choose black, shiny, odorless smell of laver.



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