Seaweed has been integrated in Chinese cuisine for centuries and was used in food, feed and even building materials.
The modern seaweed industry in China, being the largest seaweed producer in the world, began with two phases.
- The first phase started in the 1960s when the Chinese government was struggling with a huge iodine deficiency in many parts of the country. The government stimulated growing kelp and extract iodine from it. Since then, the scale of kelp cultivation has developed dramatically.
- The second phase started with the economic reforms in China from 1980s on. During this phase, the cultivation area and production volume have grown rapidly due to high demand for food ingredients extracted from seaweed like alginate, mannitol. Seaweed itself was also consumed more and more directly, in particular as a healthy snack.
According to the 2016 Chinese Fishery Yearbook, the yearly seaweed yield was over 2.1 mln mt dry weight in 2015, which was nearly 50% of world seaweed yield. By looking into this volume from an economic perspective, the total value of seaweed in China was USD 8.64 billion. As for the production regions, Fujian, Shandong and Liaoning, dominate the seaweed production, accounting for nearly 90% of total national output.
Rongcheng in Shandong and Fuzhou in Fujian have been given the designation ‘Seaweed Capital of China‘.
In terms of the types, kelp is the largest species produced, accounting for 67% of the national seaweed yield. The second largest one is Gracilaria which belongs to the family of red algae, accounting for 13%. A major product in this category is laver, ‘purple cabbage (zicai)’ in Chinese, known as nori in Japanese. China produced 212,300 mt of laver in 2019; up 5.22%. Then there is the sea mustard (qundaicai), also better known with its Japanese name: wakame. China produced 202,400 mt of sea mustard in 2019; up 15.32%.
A major problem with seaweed products was that the cost and wholesale prices were extremely low because of massive cultivation. To increase the economic value of the industry, several value adding products have been developed in recent years: including food supplements, medical matrix, medicines and skin care products. A few have been introduced in earlier posts in this blog:
- The Chinese army is investigating the use of seaweed as a source of ingredients for anti-radiation foods and beverages.
- Seaweed is used as an ingredient for artificial jellyfish.
- Several products on the Trends page of this blog have seaweed as an ingredient.
With the increasing spending power of Chinese consumers, and the growing preference for more healthy food, the consumption of seaweed snacks has grown rapidly during the past few years. The leading product is nori, laver processed into thin sheets, not for wrapping sushi, but for direct consumption. Due to the high fibre content, nori is a good way to alleviate hunger without consuming many calories. China produced 24,590 mt of nori in 2019; up 5.86%.
Chinese R&D in this industry had produced a number of innovative products. A good example is tomato flavoured nori by Strongfood (Guangdong).
In view of the good prospects of this market, I expect this post to expand soon.
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