Nutritional value of pineapple pomace and its application in animal production

YU Shengnan; ZHENG Minglin; YIN Fuquan; PAN Jun; LIU Wenchao; ZHAO Zhihui; CHEN Yuxia; ZHANG Hongfu

doi:10.13557/j.cnki.issn1002-2813.2026.02.026

Abstract：As a major tropical fruit worldwide,the processing of pineapple pomace accounting for 50%to 60%of the whole fruit mass.Improper disposal may lead to environmental pollution and resource waste.Pineapple pomace is rich in various bioactive components such as dietary fiber(DF),bromelain,phenolics,and polysaccharides,exhibiting multiple biological functions including immunomodulatory,antioxidant,anti-inflammatory,antibacterial,antitumor,and antiviral activities.In animal production,after ensiling or fermentation treatment,pineapple pomace can serve as a high-quality unconventional feed.Adding pineapple pomace to the diet of ruminants helps regulate rumen fermentation and improves growth performance,milk yield,and meat quality.In monogastric animals,appropriate inclusion can enhance nutrient utilization and intestinal health in pigs,as well as improve immune function and meat quality in poultry.In aquatic animals,it can increase digestibility,boost immunity,and reduce aquaculture pollution in fish.However,the high-value utilization of pineapple pomace still faces technical bottlenecks such as low lignocellulose degradation efficiency,lack of high value-added products,and incomplete evaluation systems for biological efficacy.Future efforts should focus on developing efficient biodegradation technologies,establishing comprehensive quality evaluation and control systems,and building an industry-university-research collaborative industrial chain model to fully exploit the feeding potential of pineapple pomace.This article reviews the nutritional characteristics of pineapple pomace,the biological activities of its extracts,and its application in animal production,aiming to provide references for promoting its high-value utilization as feed.