“ Hed lab” alga (HLA, Nostoc commune Voucher, Cyanophyta) is an edible blue-green alga (cyanobacterium). It was discovered on saline soil of a unique “DunLampan Forest” (DLF), Na Chuak district, Maha Sarakham province.Various food products were developed as followed : the meal : Thai dancing (furikake), lab (spicy salad), tofu soup, clear soup, salt & sour algal sheet ; sweet : agar (green tea and coconut flavors) and jelly (fruit flavor ); snack : gold sheet (sweet and salty taste) and tasty-crispy sheet ; beverage : fruit-flavored rice drink (pineapple, roselle and lemon flavors). Long-term preservation of HLA can be done by cryopreservation technique at -85o C using 3% dimethyl sulfoxide as a cryoprotectant.

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