2006•Anhui nongye kexueRequires access
Study on Properties of Rose Pigment
Wang Zhong-min
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Abstract
The dry rose were extracted by 5 % citric acid.The result indicated that: The rose pigment is the ahthocyanins.Which is soluble in actic(pH=1~3)and water polar solvents easily,but not in non-polar organic solvens.It appears purplish red and transparent in the solution,and is stable to heat and sunlight.Most food additives and most metal ions had no effects on the pigment except that Fe2+ 、 Fe3+ had severe undesirab leeffect.