The present invention relates to a powdered brown alga that includes a water-soluble algin and an insoluble component, with a ratio by weight of the water-soluble algin to the insoluble component of 1:0.05 to 1:4. The present invention also relates to a suspending agent using the powdered brown alga, a solution containing precipitate particles using the suspending agent, and a suspension method and a food-product improvement agent using the powdered brown alga, a food product using the food-improvement agent, and a method for manufacturing the food product.本發明係關於一種粉末褐藻,其含有水溶性褐藻膠成分及不溶性成分,且水溶性褐藻膠成分與不溶性成分之重量比為1:0.05~1:4。又,本發明亦係關於使用粉末褐藻之沈澱防止劑、使用上述沈澱防止劑之含沈澱粒子之溶液、沈澱防止方法、使用粉末褐藻之食品改良劑、使用上述食品改良劑之食品及食品之製造方法。
