主题：【已应助】求助英文文献5篇，请帮帮忙，谢谢啦！

【篇  号】：1
【题  名】： PROTOPECTIN AND SOME OTHER CONSTITUENTS OF LEMON PEEL 
【作  者】：Rudolph Sucharipa
【期刊名全称】：J. Am. Chem. Soc., 
【文献页码】：1924, 46 (1), pp 145–156 
【全文链接】:http://pubs.acs.org/doi/abs/10.1021/ja01666a019

【篇  号】：2
【题  名】：The effect of nitric acid extraction variables on orange pectin
【作  者】：G. Aravantinos-Zafiris, V. Oreopoulou
【期刊名全称】：Journal of the Science of Food and Agriculture 
【文献页码】：Volume 60, Issue 1, pages 127–129, 1992
【全文链接】: http://onlinelibrary.wiley.com/doi/10.1002/jsfa.2740600120/abstract

【篇  号】：3
【题  名】：Extraction, characterisation, and enzymatic degradation of lemon peel pectins 
【作  者】：Jose M. Ros 1, Henk A. Schols and Alfons G. J. Voragen
【期刊名全称】：Carbohydrate Research
【文献页码】：Volume 282, Issue 2, 23 February 1996, Pages 271-284 
【全文链接】: http://www.sciencedirect.com/science/article/pii/0008621595003894

【篇  号】：4
【题  名】：Lemon-peel pectin: Part I. Fractionation and partial hydrolysis of water-soluble pectin   
【作  者】：G.O. Aspinall1, a, J.W.T. Craiga and J.L. Whytea
【期刊名全称】：Carbohydrate Research
【文献页码】：Volume 7, Issue 4, August 1968, Pages 442-452 
【全文链接】: http://www.sciencedirect.com/science/article/pii/S0008621500829638

【篇  号】：5
【题  名】：RECOVERY OF ESSENTIAL OIL AND SUSPENDED SOLID MATTER FROM LEMON-PROCESSING WASTEWATER BY VOLATILE-SOLVENT EXTRACTION AND EMULSION FLOTATION   
【作  者】：JONATHAN P. EARHART, C. JUDSON KING
【期刊名全称】：Journal of Food Science
【文献页码】：Volume 41, Issue 5, pages 1247–1248, September 1976   
【全文链接】: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2621.1976.tb14433.x/abstract