Effect of Vermicompost Application on Bioactive Properties and Antioxidant Potential of MD2 Pineapple Fruits

Abstract

Vermicompost is an organic waste produced from earthworms that can enhance the soil condition and is rich with essential plant nutrients, thus increasing produce quality and shelf life. In this study, a one-year field trial was conducted to elucidate the effects of vermicompost supplementation on the composition of bioactive compounds and antioxidant activities of pineapple (Ananas comosus var. MD2) fruits, compared to control and application of chemical fertilizer. Based on the results, pineapple fruits produced from plants supplemented with chemical fertilizer showed the strongest radical scavenging properties against 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), followed by vermicompost and control plants. Application of chemical fertilizer and vermicompost also produced fruits with a very high content of chlorophylls and β-carotene compared to control plants. However, the amounts of bioactive compounds present in fruits produced with chemical fertilizer are higher than in fruits produced with vermicompost. Total phenolics content and Ferric Reducing Antioxidant Power (FRAP) reducing power were lowest in fruit extracts produced from pineapple plants supplemented with vermicompost. These results suggested that vermicompost cannot completely replace chemical fertilizer for the production of fruits with a high content of phytoconstituents but could be used as an additional supplement to reduce environmental pollution and ensure agricultural sustainability.

Shading Effects on Leaf Gas Exchange, Leaf Pigments and Secondary Metabolites of Polygonum minus Huds., an Aromatic Medicinal Herb

“…Based on this research, antioxidant activity was highly affected by the level of Chl a, Chl b, Car, and TAC instead of the values of TPC and TFC due to high correlation values that are shown in Table 2 . This shows that the antioxidant properties in P. minus are not mainly contributed by the production of TPC and TFC, which aligned with the result that was reported by Mahmud et al, 2019 [ 65 ]. Carotenoids and anthocyanin have both long been known as efficient antioxidants, in addition of anthocyanin compound being part of the flavonoid group [ 66 , 67 , 68 ].…”

I​nfluence of Treated POME Sludge Vermicomposting on Soil Physicochemical Properties and Maize Growth Performances

“…Photosynthesis rate showed the highest photosynthesis rate, 25.33 µmolm -2 s -1 in T3 while control (15.57 µmolm -2 s -1 ) with the lowest rate (Fig 3A). From the findings of Mahmud et al (2019), the application of vermicompost presented positive effects on the total chlorophyll content. As the plant production in vermicompost treatment increased, the total chlorophyll content also increased and led to a higher rate of photosynthesis.…”

Exploring the potential of vermicompost as a sustainable strategy in circular economy: improving plants’ bioactive properties and boosting agricultural yield and quality

“…For example, leftover foods or wastes from kitchen households can be recycled to produce vermicompost. Vermicompost is an organic material rich in nutrients produced from the decomposition process of earthworms and microorganisms in the mesophilic process (Mahmud et al 2019). During the process, the waste is broken down to form high-quality compost that can be used as organic fertiliser for plants and to enrich the soil.…”