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. 2019 Aug 30;99(11):5157-5167.
doi: 10.1002/jsfa.9762. Epub 2019 May 30.

Bulk storage of mango (Mangifera indica L.) and pineapple (Ananas comosus L.) pulp: effect of pulping and storage temperature on phytochemicals and antioxidant activity

Palitha C Arampath  1   2 , Matthijs Dekker  1
Affiliations

Bulk storage of mango (Mangifera indica L.) and pineapple (Ananas comosus L.) pulp: effect of pulping and storage temperature on phytochemicals and antioxidant activity

Palitha C Arampath et al. J Sci Food Agric. .

Abstract

Background: The effects of pulp extraction, thermal treatment and bulk storage of mango (Mangifera indica L.) and pineapple (Ananas comosus L.) pulps for 20 weeks at ambient (28 ± 2 °C) and cold (4 °C) temperatures on the bioactive phytochemicals and antioxidant activity were investigated.

Results: The contents of total polyphenols in mango (10.5%) and pineapple (5.4%) increased during pulping. The ratio of the degradation rate constants (kd values) (28 ± 2 °C: 4 °C) of vitamin C, polyphenols, Trolox equivalent antioxidant capacity (TEAC) and β-carotene ranged from 2-4.5 and 1.5-2.7 in mango and pineapple pulps, respectively. The kd values of tannic acid, chlorogenic acid, epicatechin and catechin in mango pulp were 1.5-1.8 times higher under ambient storage than in cold storage. Furthermore, in pineapple pulp, the degradation rates of the same components were 1.6, 1.6, 2.1 and 1.4 times, respectively, faster at room temperature than in cold storage. The bulk storage of pulps at 4 °C provided better retention of health-promoting compounds than ambient temperature storage for up to 20 weeks.

Conclusion: Bulk storage of mango and pineapple pulp under cold storage conditions (4 °C) is recommended as a better pulp preservation method than storage at ambient (28 ± 2 °C) temperature. © 2019 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

Keywords: antioxidant; bulk storage; health promoting; kinetics; mango; pineapple.

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Conflict of interest statement

The authors have no conflicts of interest to disclose.

Figures

Figure 1
Figure 1
Concentration (%) versus time (weeks) in bulk stored mango (M 4, 4 °C; M‐A ambient storage) and pineapple (P‐4, 4 °C; P‐A ambient storage) pulp. The solid and dotted lines represent the respective model of the measured data.
Figure 2
Figure 2
Correlation between the Trolox equivalent antioxidant capacity (TEAC) (%) and the health‐promoting compounds (%).
Figure 3
Figure 3
Component plot in rotated space. Components 1 and 2 represent 92.7% and 3.7% of variance, respectively.
See this image and copyright information in PMC

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