| Title |
Functional food obtained from fermentation of broccoli by-products (stalk): Metagenomics profile and glucosinolate and phenolic compounds characterization by LC-ESI-QqQ-MS/MS |
| ID_Doc |
9786 |
| Authors |
Salas-Millán, JA; Aznar, A; Conesa, E; Conesa-Bueno, A; Aguayo, E |
| Title |
Functional food obtained from fermentation of broccoli by-products (stalk): Metagenomics profile and glucosinolate and phenolic compounds characterization by LC-ESI-QqQ-MS/MS |
| Year |
2022 |
| Published |
|
| DOI |
10.1016/j.lwt.2022.113915 |
| Abstract |
This research revalues broccoli stalk by-product as a novel fermented health food, using its autochthonous microbiota. Broccoli stalk slices were packed into glass jars, brine was added (6% w/v), and two dressings were studied: garlic, and mustard seeds. No dressing was used as control. Natural fermentation was carried out at 25 degrees C for 6 days followed by a further 6 days storage at 4 degrees C. The identification of individual glucosinolates and phenolic compounds was performed by LC-ESI-QqQ-MS/MS. At day 3, the highest content in functional com-pounds such as glucoerucin and indolic glucosinolates as glucobrassicin, 4-methoxy-glucobrassicin and 4-hidroxy-glucobrassicin, and phenolic acids and flavonoids as sinapic acid, 4-O-feruloyl quinic acid and quercetin-3-O-diglucoside was found. At day 6, the broccoli stalks reached the maximum counts in lactic acid bacteria (>8 log cfu g-1), remaining stable until day 12 at 4 degrees C, including as the main genera Lactobacillus and Leuconostoc. Metagenomic analysis identified 1009 bacteria genera; Latilactobacillus sakei was the most pre-dominant lactic acid bacteria species, followed by Lactobacillus curvatus, Leuconostoc kimchi and Leuconostoc carnosum. This is an example of a vegan and functional food product, based on a circular economy model, using broccoli by-products. |
| Author Keywords |
Brassica; Probiotic; Revalorisation; Sensory quality; Brine -pickled |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000876731600008 |
| WoS Category |
Food Science & Technology |
| Research Area |
Food Science & Technology |
| PDF |
https://doi.org/10.1016/j.lwt.2022.113915
|