Composition #1: Feng, Hongjie., Li, Yanjun., Wang, Shaofang., Zhang, Liangliang., Liu, Yongchuang., Xue, Fei., Sun, Yuqiang., Wang, Yongmei., Sun, Jie. Molecular analysis of proanthocyanidins related to pigmentation in brown cotton fibre (Gossypium hirsutum L.). . journal of experimental botany, 2014, vol. 65, no. 20, p. 5759–69. DOI: 10.1093/jxb/eru286.
[
DOI link]