Mold spoilage and nutrition enrichment are major concerns of Chinese steamed bread, and using functional lactic acid bacteria as starter to play the role of in-situ preservation and nutritional fortification was a promising alternative. Hence, Lactiplantibacillus plantarum P10 capable of inhibiting spoilage microorganisms and producing γ-aminobutyric acid (GABA) (380 mg/L) was screened from Chinese pickle. Metabolomics analysis showed that P10 produced key antimicrobial metabolites mainly including ten organic acids, aldehyde, alkaloid. Besides, P10 might exhibit health beneficial effects such as degrading cholesterol, lowering blood glucose and reducing uric acid due to the production of deoxycholic acid and Ile-Pro-Ile, and the degradation of purine. Finally, the promising application potential of P10 was evidenced in steamed bread with extended shelf life, excellent anti-aging effect, and 24.5-fold enrichment of GABA. Conclusively, this investigation could provide scientific basis for the application of P10 as a functional starter in steamed bread.
M. Quattrini, N. Liang, M.G. Fortina, et al., Exploiting synergies of sourdough and antifungal organic acids to delay fungal spoilage of bread, Int. J. Food Microbiol. 302 (2019) 8-14. https://doi.org/10.1016/j.ijfoodmicro.2018.09.007.
S. Zhao, X. Hao, F. Yang, et al., Antifungal activity of Lactobacillus plantarum ZZUA493 and its application to extend the shelf life of Chinese steamed buns. Foods 11 (2022) 195. https://doi.org/10.3390/foods11020195.
B. Yan, J. Zhao, D. Fan, et al., Antifungal activity of Lactobacillus plantarum against Penicillium roqueforti in vitro and the preservation effect on chinese steamed bread, J. Food Process. Preserv. 41 (2017) e12969. https://doi.org/10.1111/jfpp.12969.
Q. Wu, N.P. Shah, Gas release-based prescreening combined with reversed-phase HPLC quantitation for efficient selection of high-γ-aminobutyric acid (GABA)-producing lactic acid bacteria, J. Dairy Sci. 98 (2015) 790-797. https://doi.org/10.3168/jds.2014-8808.
L. Sun, X. Li, Y. Zhang, et al., A novel lactic acid bacterium for improving the quality and shelf life of whole wheat bread, Food Contr. 109 (2020) 106914. https://doi.org/10.1016/j.foodcont.2019.106914.
C. Song, L. Zhu, Y. Shao, et al., Enhancement of GABA content in Hongqu wine by optimisation of fermentation conditions using response surface methodology, Czech J. Food Sci. 39 (2021) 297-304. https://doi.org/10.17221/47/2021-cjfs.
Y. Cao, L. Jiang, W. Suo, et al., Influence of emulsifiers and enzymes on dough rheological properties and quality characteristics of steamed bread enriched with potato pulp, Food Chem. 360 (2021) 130015. https://doi.org/10.1016/j.foodchem.2021.130015.
H. Li, Q. Zhang, Isolation and identification of lactic acid bacteria inhibiting Staphylococcus Aureus, Francis Academic Press 30 (2019) 247-249. https://doi.org/10.26914/c.cnkihy.2019.039086.
J. Ma, Y. Hong, L. Deng, et al., Screening and characterization of lactic acid bacteria with antifungal activity against Penicillium digitatum on citrus, Bio. Control 138 (2019) 104044. https://doi.org/10.1016/j.biocontrol.2019.104044.
U. George-Okafor, U. Ozoani, F. Tasie, et al., The efficacy of cell-free supernatants from Lactobacillus plantarum Cs and Lactobacillus acidophilus ATCC 314 for the preservation of home-processed tomato-paste, Scientific African 8 (2020) 1-19. https://doi.org/10.1016/j.sciaf.2020.e00395.
K. Zhuang, Y. Jiang, X. Feng, et al., Transcriptomic response to GABA-producing Lactobacillus plantarum CGMCC 1.2437T induced by L-MSG, PLoS One 13 (2018) e0199021. https://doi.org/10.1371/journal.pone.0199021.
Y. Zeng, Y. Li, Q.P. Wu, et al., Evaluation of the antibacterial activity and probiotic potential of Lactobacillus plantarum isolated from Chinese homemade pickles, Can. J. Infect. Dis. Med. 2020 (2020) 1-11. https://doi.org/10.1155/2020/8818989.
H. Lind, H. Jonsson, J. Schnürer, Antifungal effect of dairy propionibacteria: contribution of organic acids, Int. J. Food Microbiol. 98 (2004) 157-165. https://doi.org/10.1016/j.ijfoodmicro.2004.05.020.
X. Guo, J. Wang, R. Niu, et al., Effects of apple juice fermented with Lactobacillus plantarum CICC21809 on antibiotic-associated diarrhea of mice, J. Funct. Foods 99 (2022) 105334. https://doi.org/10.1016/j.jff.2022.105334.
J. Sjogren, J. Magnusson, A. Broberg, et al., Antifungal 3-hydroxy fatty acids from Lactobacillus plantarum MiLAB 14, Appl. Environ. Microbiol. 69 (2003) 7554-7557. https://doi.org/10.1128/AEM.69.12.7554-7557.2003.
L. Chen, D. Feng, Y. Qian, et al., Valtrate as a novel therapeutic agent exhibits potent anti-pancreatic cancer activity by inhibiting Stat3 signaling, Phytomedicine 85 (2021) 1-9. https://doi.org/10.1016/j.phymed.2021.153537.
N. Molinero, L. Ruiz, B. Sanchez, et al., Intestinal bacteria interplay with bile and cholesterol metabolism: implications on host physiology, Front. Physiol. 10 (2019) 185. https://doi.org/10.3389/fphys.2019.00185.
C. Guan, S. Iwatani, X.H. Xing, et al., Strategic preparations of DPP-Ⅳ inhibitory peptides from Val-Pro-Xaa and Ile-Pro-Xaa peptide mixtures, Int. J. Pept. Res. Ther. 27 (2020) 735-743. https://doi.org/10.1007/s10989-020-10122-7.
O.S. Kevser Karaman, M. Zeki Durak, Use of phytase active yeasts and lactic acid bacteria isolated from sourdough in the production of whole wheat bread, LWT-Food Sci. Technol. 91 (2018) 557-567. https://doi.org/10.1016/j.lwt.2018.01.055.
B.E. Teleky, A.G. Martău, F. Ranga, et al., Exploitation of lactic acid bacteria and baker’s yeast as single or multiple starter cultures of wheat flour dough enriched with soy flour, Biomolecules 10 (2020) 778. https://doi.org/10.3390/biom10050778.
H. Hadaegh, S.M. Seyyedain Ardabili, M. Tajabadi Ebrahimi, et al., The impact of different lactic acid bacteria sourdoughs on the quality characteristics of toast bread, J. Food Quality 2017 (2017) 1-11. https://doi.org/10.1155/2017/7825203.
L. de Luca, A. Aiello, F. Pizzolongo, et al., Volatile organic compounds in breads prepared with different sourdoughs, Appl. Sci. 11 (2021) 1330. https://doi.org/10.3390/app11031330.
B. Fernandez, A. Vimont, É. Desfossés-Foucault, et al., Antifungal activity of lactic and propionic acid bacteria and their potential as protective culture in cottage cheese, Food Control 78 (2017) 350-356. https://doi.org/10.1016/j.foodcont.2017.03.007.
X. Meng, W. Hu, S. Wu, et al., Chinese yam peel enhances the immunity of the common carp (Cyprinus carpio L.) by improving the gut defence barrier and modulating the intestinal microflora, Fish Shellfish Immun. 95 (2019) 528-537. https://doi.org/10.1016/j.fsi.2019.10.066.
X. Li, Y. Ning, D. Liu, et al., Metabolic mechanism of phenyllactic acid naturally occurring in Chinese pickles, Food Chem. 186 (2015) 265-270. https://doi.org/10.1016/j.foodchem.2015.01.145.
Z. Fu, J. Chen, S.J. Luo, et al., Effect of food additives on starch retrogradation: a review, Starch-Stärke 67 (2015) 69-78. https://doi.org/10.1002/star.201300278.
S. Bhanwar, M. Bamnia, M. Ghosh, et al., Use of Lactococcus lactis to enrich sourdough bread with gamma-aminobutyric acid, Int. J. Food Sci. Nutr. 64 (2013) 77-81. https://doi.org/10.3109/09637486.2012.700919.
M. Venturi, V. Galli, N. Pini, et al., Use of selected Lactobacilli to increase γ-aminobutyric acid (GABA) content in sourdough bread enriched with amaranth flour, Foods 8 (2019) 218. https://doi.org/10.3390/foods8060218.
L. Diez-Gutiérrez, L. San Vicente, L.J.R. Barrón, et al., Gamma-aminobutyric acid and probiotics: multiple health benefits and their future in the global functional food and nutraceuticals market, J. Funct. Foods 64 (2020) 103669. https://doi.org/10.1016/j.jff.2019.103669.
E. Renes, D.M. Linares, L. González, et al., Production of conjugated linoleic acid and gamma-aminobutyric acid by autochthonous lactic acid bacteria and detection of the genes involved, J. Funct. Foods 34 (2017) 340-346. https://doi.org/10.1016/j.jff.2017.05.014.
D. Cizeikiene, J. Jagelaviciute, M. Stankevicius, et al., Thermophilic lactic acid bacteria affect the characteristics of sourdough and whole-grain wheat bread, Food Biosci. 38 (2020) 100791. https://doi.org/10.1016/j.fbio.2020.100791.
E. Torrieri, O. Pepe, V. Ventorino, et al., Effect of sourdough at different concentrations on quality and shelf life of bread, LWT-Food Sci. Technol. 56 (2014) 508-516. https://doi.org/10.1016/j.lwt.2013.12.005.
Y. Wang, Z. Wang, Q. Han, et al., Comprehensive insights into the evolution of microbiological and metabolic characteristics of the fat portion during the processing of traditional Chinese bacon, Food Res. Int. 155 (2022) 110987. https://doi.org/10.1016/j.foodres.2022.110987.