Physico-Chemical Properties, Antioxidant Activity and Mineral Contents of Pineapple Genotypes Grown in China

Abstract

Abstract:The fruit physico-chemical properties, antioxidant activity and mineral contents of 26 pineapple [Ananas comosus (L.) Merr.] genotypes grown in China were measured. The results showed great quantitative differences in the composition of these pineapple genotypes. Sucrose was the dominant sugar in all 26 genotypes, while citric acid was the principal organic acid. Potassium, calcium and magnesium were the major mineral constituents. The ascorbic acid (AsA) content ranged from 5.08 to 33.57 mg/100 g fresh weight (FW), while the total phenolic (TP) content varied from 31.48 to 77.55 mg gallic acid equivalents (GAE)/100 g FW. The two parameters in the predominant cultivars Comte de Paris and Smooth Cayenne were relative low. However, MD-2 indicated the highest AsA and TP contents (33.57 mg/100 g and 77.55 mg GAE/100 g FM, respectively), and it also showed the strongest antioxidant capacity 22.85 and 17.30 μmol TE/g FW using DPPH and TEAC methods, respectively. The antioxidant capacity of pineapple was correlated with the contents of phenolics, flavonoids and AsA. The present study provided important information for the further application of those pineapple genotypes.

Antioxidant Potential of Different Parts of Bogor Pineapple (Ananas Comosus [L.] Merr. Var. Queen) Cultivated in West Java-Indonesia

“…It was different with the present study which demonstrated that ethanolic peel extract of Bogor pineapple showed IC 50 DPPH 0.13 µg/ml classified as a very strong antioxidant. The previous research presented that methanol fruit pulp extract of MD2 genotype pineapple gave the highest DPPH scavenging activities (22.85 µmol TE/fresh weight) among 26 six genotypes of pineapples from China [11]. A study by Kongsuwan et al [20] exhibited that frozen fruit pulp Nanglae pineapple showed higher DPPH scavenging activity (152.93 mol TE/100 g fresh weight) than Phulae pineapple (118 mol TE/100 g fresh weight).…”

“…A study by Kongsuwan et al [20] presented that TPC and vitamin C of frozen fruit pulp of Phulae pineapple (26.20 mg GAE/100 g and 18.88 mg/100 g fresh weight, respectively) were higher than Nanglae pineapple (20.28 mg GAE/100 g and 6.45 mg/100 g fresh weight). The previous study [11] expressed that TPC in methanolic fruit pulp extract of MD2 pineapple genotype (77.55 mg GAE/100 g fresh weight) was the highest TPC among 26 six pineapple genotypes. The methanolic peel extract of pineapple from Egypt exhibited that FPW showed higher TPC than UFPW [22].…”

“…The previous study [11] exposed antioxidant activities of methanol fruit pulp extract in terms of mol Trolox equivalent (TE)/g fresh weight. Therefore, the higher antioxidant activities will demonstrate by higher mol TE/g fresh weight.…”

“…A research by Lu et al [11] regarding TFC in methanolic fruit pulp extract of 26 six pineapple genotypes forms China which grown with the same geographical conditions. The results found that TFC in Comte de Paris pineapple genotype gave the highest TFC (0.0345 g RE/100 g fresh weight).…”

“…The previous study [11] presented that fruit pulp of pineapple (Ananas comosus) had antioxidant capacity. Parts of the plant may contain similar compounds, and hence, they have similar effects.…”