6Viljoen A M,Wyk B V.A chemotaxonomic and morphological appraisal of Aloe series Purpurascentes,Aloe section Anguialoe and their hybrid,Aloe broomii[J].Biochemical Systematics and Ecology,2001,29(6):621-631.
7Vilkhu K,Mawson R,Simons L,et al.Applications and opportunities for ultrasound assisted extraction in the food industry-A review[J].Innovative Food Science and Emerging Technologies,2008,9 (2):161-169.
8Wang J,Sun B,Cao Y,et al.Optimisation of ultrasound-assisted extraction of phenolic compounds from wheat bran[J].Food Chemistry,2008,106(2):804-810.
9Boxg E P,Hunter W G.Statistics for experiments:an introduction to design,data analysis and model building[M].New York:John Wiley and Sons Inc,1978.
10Kalil S J,Maugeri F,Rodrigues M I.Response surface analysis and simulation as a tool for bioprocess design and optimization[J].Process Biochemistry,2000,35 (6):539-550.
