Articles
Tiger nut milk enriched with bioactive compounds of Brassica extract new format for delivering phytochemicals for health
Article number
1387_43
Pages
311 – 314
Language
English
Abstract
Cruciferous sprouts are gaining support as nutritious and phytochemical-dense natural foods, rich in phytochemicals such as glucosinolates (GSL). The breakdown products of these sulfur-based compounds, mainly isothiocyanates (ITC) are considered health promoters in a range of pathophysiological conditions including cancer, inflammatory diseases, and metabolic disorders.
In this sense, the high bioaccessibility of ITC from red cabbage sprouts (RedCS) and the use of plasma membrane vesicles from cauliflower inflorescences to improve the retention of ITCs as carriers would facilitate the preparation of novel formulas addressed to delivering bioactive compounds applying a palatable vehicle: plant-based beverages.
Therefore, this research uncovers the suitability of using RedCS extracts (free and nano-encapsulated with plant membrane vesicles) to enrich a well-known and widely accepted plant-based drink NDASH tiger nut milk, for improving the nutritional and bioactive profile while maintaining acceptability.
The beverages were prepared by adding 2% RedCS (w:v) extracts (either free or nano-encapsulated with plant membrane vesicles) to commercial tiger nut milk from a local supermarket and, after homogenization, the samples were kept at 4°C for 2 weeks.
Samples of controls and 2% RedCS (free and encapsulated) enriched beverages were collected at days 0, 7, and 14 of cold storage (4°C). The SFN content (2500-2550 nmol L‑1) in the extracts (free and encapsulated) was reduced drastically (by 99 and 85%, in free and encapsulated extract, respectively) during the first 7 days, remaining unchanged from the level reached at day 7 until the end of the monitoring period (day 14). On the contrary, the level of SFN in the beverages dropped after preparation, and SFN was not detectable after 24 h at 4°C. The average vesicle size and their polydispersity were also analyzed as a measure of the stability of the carrier during the study, but the average size increased, showing the also heterogenous population of vesicles, and the content of proteins of the vesicles also was reduced (by 60% at day 14) during the cold storage, indicative of degradation.
The design of plant-based beverages enriched in Brassica encapsulated ITCs is a viable strategy for delivering Brassica bioactives for health, but further research on the suitable combination of the carrier (nano-encapsulation) and beverage (plant-based) under the appropriate processing that will be key for obtaining fortified and acceptable products.
In this sense, the high bioaccessibility of ITC from red cabbage sprouts (RedCS) and the use of plasma membrane vesicles from cauliflower inflorescences to improve the retention of ITCs as carriers would facilitate the preparation of novel formulas addressed to delivering bioactive compounds applying a palatable vehicle: plant-based beverages.
Therefore, this research uncovers the suitability of using RedCS extracts (free and nano-encapsulated with plant membrane vesicles) to enrich a well-known and widely accepted plant-based drink NDASH tiger nut milk, for improving the nutritional and bioactive profile while maintaining acceptability.
The beverages were prepared by adding 2% RedCS (w:v) extracts (either free or nano-encapsulated with plant membrane vesicles) to commercial tiger nut milk from a local supermarket and, after homogenization, the samples were kept at 4°C for 2 weeks.
Samples of controls and 2% RedCS (free and encapsulated) enriched beverages were collected at days 0, 7, and 14 of cold storage (4°C). The SFN content (2500-2550 nmol L‑1) in the extracts (free and encapsulated) was reduced drastically (by 99 and 85%, in free and encapsulated extract, respectively) during the first 7 days, remaining unchanged from the level reached at day 7 until the end of the monitoring period (day 14). On the contrary, the level of SFN in the beverages dropped after preparation, and SFN was not detectable after 24 h at 4°C. The average vesicle size and their polydispersity were also analyzed as a measure of the stability of the carrier during the study, but the average size increased, showing the also heterogenous population of vesicles, and the content of proteins of the vesicles also was reduced (by 60% at day 14) during the cold storage, indicative of degradation.
The design of plant-based beverages enriched in Brassica encapsulated ITCs is a viable strategy for delivering Brassica bioactives for health, but further research on the suitable combination of the carrier (nano-encapsulation) and beverage (plant-based) under the appropriate processing that will be key for obtaining fortified and acceptable products.
Publication
Authors
P. Garcia-Ibañez, C. Guijarro-Real, R. Domínguez-Perles, M. Carvajal, D.A. Moreno
Keywords
red cabbage, sulforaphane, tiger nut milk, horchata, refrigerated, beverage
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