1.
【作者】Kim,W.J.,Smith,C.G.B & Rao,V.N
【文题】Demethylation of pectin using acid ammonia
【期刊名，年份，卷（期），起止页码】J.Food Sci.,1978,43:74-78
2.
【作者】Slavickova,A.
【文题】The reaction of pectin with ammonia in the presence of calcium salts
【期刊名，年份，卷（期），起止页码】 Food Technol.,1961,5:73
