Potential Sea Grapes In Vietnam

Sea grape grows on sandy mud bottoms, sandy mud in bays enclosed air, water. In Vietnam, street grapes are found in nasal Birds Birds of Con Dao, Ba Ria Vung Tau (2005), Phu Quy Island, Binh Thuan (2006). However, the size of sea grapes very small, 1/3 – 1/4 compared to algae grown grapes are present. Seaweed sea grape is grown in Vietnam originated from the Philippines, after being introduced to Japan.

2004, this seaweed is a geological engineer Vietnam received from Japanese experts to study and test improved methods of cultivation and breeding success in Ninh Ich Commune, Ninh Hoa district, Khanh Hoa, for launched a seaweed products have higher quality grapes Japan. In 2006, Nha Trang Oceanography Institute deploy scientific topics trials of this object by means of vegetative reproduction in composite tank for decent results.
Narrow sea grape species of salt, less than 25 ‰ salinity, weeds stop growing grapes and expression of tolerance and if less than 20 ‰, we will die, preferably in normal sea conditions (33-34 ‰). Sea grape chilly, as the temperature lowered to 20 degrees C, they grow slowly or stop growing, the most suitable temperature for the growth of algae in the range of 28-30 degrees C. Grape threshold light sea grape is quite narrow, the appropriate light intensity in the range of 10000-20000 lux. Growth rate when planted in the wild can reach from 2.5 to 3.19% / day. After 60 days of planting, growing sea grape than 10-15 times the original volume.
In addition to software characteristics, crispy and delicious so very popular, used as a valuable green vegetables due to high levels of vitamins A, C, trace elements and fatty acids are essential polyunsaturated the human body, as well as food vendors grapes safety due to a very low level or absence of microorganisms that cause intestinal diseases. Sea grape supply of iodine, calcium, iron and vitamins A, C for the human body.
Our prices at the market in Hanoi, HCMC. Ho Chi Minh City from 120,000 -150,000 / kg of fresh seaweed, in Japan in less than 60 USD / kg, while in the Philippines, and Vietnam into Japan US $10-15/kg.
To meet the increasing demands of the people and the scarcity of natural sea grape , today some countries such as Japan, the Philippines, Vietnam, Thailand, … has farmed seaweed species with the bottom plant form, grown in cages in the tray planted land, growing strain on the grid wire or plastic frame designed with holes in the pond or on the sea, feeding in the pools covered pool, … time 1.5-2 months after planting can be harvested.
After about 2 months of growing time, the sea grape leaves are cut off long size 5-10 cm, the saltwater tank filtration aeration clean dirt. After that, to machining centrifugal drain and select the stalks (fruit cluster) for packaging quality. Greater numbers and all of the grapes (ramuli) determine the value of the product. Seaweed has 2 kinds of finished wine is fresh seaweed (use time from 5-6 days) and seaweed salt (use time from 2-3 months). Fresh after cleaning algae in salt water saturation for several hours, dehydrated seaweed 60% (2.5 kg of fresh seaweed remaining 1 kg) and taking just 15 minutes soaking through freshwater algae absorbs water and swells as the initial state.
Pass the sunny climate, low rainfall, windy throughout the year, sea grape has gradually adapted and initially for the seaweed fresh grape in Ninh Thuan. In 2012, testing of Ninh Thuan grape seaweed. 2013, Ninh Thuan has expanded the area of 10 hectares with 3 growers focus Nai lagoon in Ninh Hai district, in the salt ponds produce salt, abandoned aquaculture ponds, each producing 5-7 months tonnes in commercial grape.
Potential sea grape aquaculture development in our country, is contributing to product diversification in farming seaweed. In addition to the environmental aspects, because algae have the ability to absorb nutrients very quickly so it can be used in models for sustainable aquaculture, improve environmental quality, increase revenue for the community. Can deploy the appropriate type of farming depends on the local situation. The area of abandoned shrimp at low tide zone is huge potential for the development of grape seaweed. The offshore islands and coastal absolutely can feed seaweed to reduce the need to transport vegetables from the mainland.
Department of Science and Technology of Khanh Hoa Province is building scheme sea grape fresh vegetables for the Department of Navy in the Spratlys sea grape has also appeared on the menu in some luxury restaurants in the city. Ho Chi Minh City, Hanoi, Phan Rang-Thap Cham … and tomorrow will become the foods in your diet coastal city of Vietnam.
With high economic value, the ability to tame suit climatic conditions and environment of the coastal province of South Central Vietnam and ability diverse forms of aquaculture, sea grape trees rong future trends development of new aquaculture species, engaged in seaweed world market, bringing higher value of exports for the country and for the whole province of Ninh Thuan.
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