Analysis and evaluation of the quality of chili pepper grown from olive pomace

LIU Ajing; XIE Yingshuang; LI Qiaohua; WANG Juan; WANG Huijun; WANG Bo

doi:10.16861/j.cnki.zggc.2024.0267

Abstract：In order to investigate the effects of different quality fractions of olive pomace cultivation substrates on the growth and quality of chili pepper,olive pomace,cottonseed hulls,bran and perlite straw were used as the main materials to cultivate chili pepper.Five treatments including 0％olive pomace(S0),10％olive pomace(S4),25％olive pomace(S3),50％olive pomace(S2)and 75％olive pomace(S1)were added to detect the quality,yield and other indicators of chili pepper.Correlation analysis and principal component analysis were used to comprehensively analyze and evaluate the nutritional quality of chili pepper,so as to provide reference for the feasibility of olive pomace cultivation of chili pep-per.The results indicated that compared with S0,the total yield of chili pepper treated with olive pomace in S1,S2,S3 and S4 increased by 10.21％to 65.80％.The content of water,protein,polysaccharides,vitamin C and free amino acids in chili pepper were significantly higher than that in the control group,while the content of crude fiber was significantly low-er than that in S0.The total amino acid content of chili pepper treated with S1 was the highest reaching 8.22 g·100 g-1,which was 2.47 times higher than S0.Its essential amino acid/total amino acid(EAA/TAA)exceeded the recommended standard value,and its comprehensive quality and nutritional components were better.In summary,it was completely fea-sible to use the method of adding olive pomace as a cultivation substrate for chili pepper,and it is more conducive to the growth and overall quality improvement of chili pepper.Adding 75％olive pomace treatment(S1)was more suitable for the cultivation of chili pepper.