Physico-chemical properties, probiotic stability and sensory characteristics of Lactobacillus plantarum S20 – supplemented passion fruit (Passiflora edulis f. flavicarpa deg.) juice powder

Issue Date

4-2020

Abstract

The study aimed to develop a non-dairy-based probiotic-supplemented product using an underutilized crop in the Philippines such as the yellow passion fruit (Passiflora edulis f. flavicarpa Deg.). The physico-chemical properties (moisture content, water activity, pH, and total soluble solids), probiotics stability at different storage temperatures (4°C, 25°C, and 37°C), and the sensory characteristics of Lactobacillus plantarum S20-supplemented passion fruit juice powder was evaluated. Passion fruit juice powder and L. plantarum S20 were first prepared using low-temperature spray drying utilizing maltodextrin as a carrier, with yield as 42.97% and 21.17%, respectively. Spray drying of probiotics culture also resulted in 42.68% log survivability. The formulated juice powder had a final moisture content of 1.729±0.38% and water activity of 0.398±0.0051, and with recommended dilution with water, had a final pH and total soluble solids of 3.40±0.10 and 12.00±0.00° Brix, respectively. Results also showed that storage of the formulated juice powder at 4°C yielded the highest probiotic stability, maintaining a viable log count of 4.27 per g, while storage at 37°C showed no microbial growth. Sensory evaluation of probiotic-supplemented passion fruit juice against a non-probiotic-supplemented one revealed significant difference in terms of color, sweetness, and sourness, while no significant difference was observed in terms of aroma, mouthfeel, and general acceptability.

Source or Periodical Title

Food Research

Volume

4

Issue

2

Page

320-326

Document Type

Article

College

College of Agriculture and Food Science (CAFS)

Language

English

Subject

Lactobacillus plantarum S20, Passion fruit, Probiotics

Identifier

https://doi.org/10.26656/fr.2017.4(2).295

Digital Copy

Yes

En – AGROVOC descriptors

LACTOBACILLUS PLANTARIUM S20; PROBIOTICS; PASSION FRUIT

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