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Santos Pereira ED, de Oliveira Raphaelli C, Massaut KB, Camargo TM, Radünz M, Hoffmann JF, Vizzotto M, Pieniz S, Fiorentini ÂM. Probiotic Yogurt Supplemented with Lactococcus lactis R7 and Red Guava Extract: Bioaccessibility of Phenolic Compounds and Influence in Antioxidant Activity and Action of Alpha-amylase and Alpha-glucosidase Enzymes. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2024; 79:219-224. [PMID: 38345666 DOI: 10.1007/s11130-024-01149-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/24/2024] [Indexed: 02/24/2024]
Abstract
The industry has increasingly explored the development of foods with functional properties, where supplementation with probiotics and bioactive compounds has gained prominence. In this context, the study aimed to evaluate the influence of in vitro biological digestion on the content of phenolic compounds, antioxidant activity, and inhibition of α-amylase and α-glucosidase activities of probiotic yogurt supplemented with the lactic acid bacteria Lactococcus lactis R7 and red guava extract (Psidium cattleianum). A yogurt containing L. lactis R7 (0.1%) and red guava extract (4%) was characterized for the content of phenolic compounds, antioxidant activity, and potential for inhibition of digestive enzymes after a simulated in vitro digestion process. After digestion, the caffeic and hydroxybenzoic acids remained, and sinapic acid only in the last digestive phase. Antioxidant activity decreased during digestion by 28.93, 53.60, and 27.97% for DPPH, nitric oxide and hydroxyl radicals, respectively, and the inhibition of the α-amylase enzyme decreased only 4.01% after the digestion process. α-glucosidase was more efficient in intestinal digestion, demonstrating an increase of almost 50% in probiotic yogurt with red guava extract before digestion. Possibly, the phenolics change their conformation during digestion, generating new compounds, reducing antioxidant activity, and increasing the inhibitory activity of α-glucosidase digestive enzymes. It was concluded that the probiotic yogurt formulation supplemented with red guava extract could interfere with the concentration of phenolic compounds and the formation of new compounds, suggesting a positive and effective inhibition of the digestive enzymes, even after the digestive process.
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Affiliation(s)
- Elisa Dos Santos Pereira
- Faculty of Nutrition, Department of Nutrition, University Federal de Pelotas, R. Gomes Carneiro, 01, Pelotas, RS, 96010-610, Brazil
| | - Chirle de Oliveira Raphaelli
- Faculty of Agronomy, Department of Food Science and Technology, University Federal de Pelotas, Pelotas, RS, Brazil.
| | - Khadija Bezerra Massaut
- Faculty of Nutrition, Department of Nutrition, University Federal de Pelotas, R. Gomes Carneiro, 01, Pelotas, RS, 96010-610, Brazil
| | - Taiane Mota Camargo
- Faculty of Agronomy, Department of Food Science and Technology, University Federal de Pelotas, Pelotas, RS, Brazil
| | - Marjana Radünz
- Faculty of Agronomy, Department of Food Science and Technology, University Federal de Pelotas, Pelotas, RS, Brazil
| | - Jéssica Fernanda Hoffmann
- Technological Institute in Food for Health, School of Health, University of Vale dos Sinos, São Leopoldo, Brazil
| | - Márcia Vizzotto
- Department of Food Science and Technology, Brazilian Agricultural Research Company - EMBRAPA, Pelotas, RS, Brazil
| | - Simone Pieniz
- Faculty of Nutrition, Department of Nutrition, University Federal de Pelotas, R. Gomes Carneiro, 01, Pelotas, RS, 96010-610, Brazil
| | - Ângela Maria Fiorentini
- Faculty of Agronomy, Department of Food Science and Technology, University Federal de Pelotas, Pelotas, RS, Brazil
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White Brined Cheese Production by Incorporation of a Traditional Milk-Cereal Prebiotic Matrix with a Candidate Probiotic Bacterial Strain. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11136182] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The aim of the present study is the evaluation of a novel potentially probiotic Lactobacillus paracasei SP5, previously isolated from dairy products, as a starter culture of white brined cheese production, either free or immobilized on a traditional food, “trahanas”, in order to provide protection to the starter culture and a prebiotic effect. All produced cheeses were compared with cheese manufactured by renin enzyme. Several parameters that affect the acceptability, quality, and shelf life of white brined cheese were investigated, including microbial populations, physicochemical characteristics, and cheese volatiles through 70 days of ripening and storage. White brined cheese production by free or immobilized L. paracasei SP5 resulted in significantly higher acidity (over 0.8 g of lactic acid/100 g of cheese at the 70th day of ripening) and significantly reduced counts (around 50%) of coliforms, yeasts, and fungi compared to cheese produced with no starter culture. The use of the freeze-dried novel starter culture, either free or immobilized, improved the aromatic profile of cheeses as was proven through a GC-MS analysis. In addition, it should be underlined that the application of the novel strain led to white brined cheese with improved overall quality and sensory characteristics. The results indicate the potential industrial use of freeze-dried L. paracasei SP5 as a starter culture for the production of good-quality functional white brined cheeses.
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Salek RN, Lorencová E, Míšková Z, Lazárková Z, Pachlová V, Adámek R, Bezděková K, Buňka F. The impact of Chios mastic gum on textural, rheological and melting properties of spread-type processed cheese during storage. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2020.104755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Min Z, Yunyun J, Miao C, Zhennai Y. Characterization and ACE Inhibitory Activity of Fermented Milk with Probiotic Lactobacillus plantarum K25 as Analyzed by GC-MS-Based Metabolomics Approach. J Microbiol Biotechnol 2020; 30:903-911. [PMID: 32160695 PMCID: PMC9728348 DOI: 10.4014/jmb.1911.11007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 02/27/2020] [Indexed: 12/15/2022]
Abstract
Addition of probiotics to yogurt with desired health benefits is gaining increasing attention. To further understand the effect of probiotic Lactobacillus plantarum on the quality and function of fermented milk, probiotic fermented milk (PFM) made with probiotic L. plantarum K25 and yogurt starter (L. delbrueckii ssp. bulgaricus and Streptococcus thermophilus) was compared with the control fermented milk (FM) made with only the yogurt starter. The probiotic strain was shown to survive well with a viable count of 7.1 ± 0.1 log CFU/g in the PFM sample after 21 days of storage at 4°C. The strain was shown to promote formation of volatiles such as acetoin and 2,3-butanediol with milk fragrance, and it did not cause post-acidification during refrigerated storage. Metabolomics analysis by GC-MS datasets coupled with multivariate statistical analysis showed that addition of L. plantarum K25 increased formation of over 20 metabolites detected in fermented milk, among which γ-aminobutyric acid was the most prominent. Together with several other metabolites with relatively high levels in fermented milk such as glyceric acid, malic acid, succinic acid, glycine, alanine, ribose, and 1,3-dihydroxyacetone, they might play important roles in the probiotic function of L. plantarum K25. Further assay of the bioactivity of the PFM sample showed significant (p < 0.05) increase of ACE inhibitory activity from 22.3% at day 1 to 49.3% at day 21 of the refrigerated storage. Therefore, probiotic L. plantarum K25 could be explored for potential application in functional dairy products.
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Affiliation(s)
- Zhang Min
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 00048, P.R. China
| | - Jiang Yunyun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 00048, P.R. China,Mengniu Dairy (Beijing) Co., Ltd., Beijing, P.R. China
| | - Cai Miao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 00048, P.R. China
| | - Yang Zhennai
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 00048, P.R. China,Corresponding author Phone: +13717785167 E-mail:
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Schoina V, Terpou A, Papadaki A, Bosnea L, Kopsahelis N, Kanellaki M. Enhanced Aromatic Profile and Functionality of Cheese Whey Beverages by Incorporation of Probiotic Cells Immobilized on Pistacia terebinthus Resin. Foods 2019; 9:E13. [PMID: 31877900 PMCID: PMC7022775 DOI: 10.3390/foods9010013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/18/2019] [Accepted: 12/20/2019] [Indexed: 12/17/2022] Open
Abstract
: In the present study, cheese whey was utilized for the development of a novel functional beverage, using Lactobacillus casei ATCC 393 probiotic cells immobilized on Pistacia terebinthus resin (pissa Paphos). Evaluation of shelf life of the produced beverages showed that spoilage microorganisms were not observed in beverages containing P. terebinthus resin. Terpenes' rich content might have contributed to the antimicrobial activity of the produced beverages; however, no significant effect on the viability of the immobilized probiotic cells was obtained. Whey beverages containing the immobilized biocatalyst retained a high viability (>1 × 106 CFU/g) of probiotic cells during a storage period of 30 days at 4 °C. The superiority of whey beverages containing the immobilized biocatalyst was also highlighted by GC-MS analysis, while the enhanced aromatic profile, which was mostly attributed to the higher concentration of terpenes, was also detected during the sensory evaluation performed. Conclusively, this study indicated the high commercialization potential of these novel functional whey beverages, within the frame of a sustainable dairy waste valorization approach. To the best of our knowledge, this is the first food-oriented approach within the guidelines of the circular economy reported in the literature, using the autochthonous Pistacia terebinthus resin for the production of functional whey beverages.
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Affiliation(s)
- Vasiliki Schoina
- Food Biotechnology Group, Department of Chemistry, University of Patras, GR-26500 Patras, Greece; (V.S.); (M.K.)
| | - Antonia Terpou
- Food Biotechnology Group, Department of Chemistry, University of Patras, GR-26500 Patras, Greece; (V.S.); (M.K.)
| | - Aikaterini Papadaki
- Department of Food Science and Technology, Ionian University, 28100 Kefalonia, Greece; (A.P.); (N.K.)
| | - Loulouda Bosnea
- Hellenic Agricultural Organization DEMETER, Dairy Research Institute, 45221 Ioannina, Greece
| | - Nikolaos Kopsahelis
- Department of Food Science and Technology, Ionian University, 28100 Kefalonia, Greece; (A.P.); (N.K.)
| | - Maria Kanellaki
- Food Biotechnology Group, Department of Chemistry, University of Patras, GR-26500 Patras, Greece; (V.S.); (M.K.)
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Afzaal M, Khan AU, Saeed F, Ahmed A, Ahmad MH, Maan AA, Tufail T, Anjum FM, Hussain S. Functional exploration of free and encapsulated probiotic bacteria in yogurt and simulated gastrointestinal conditions. Food Sci Nutr 2019; 7:3931-3940. [PMID: 31890171 PMCID: PMC6924303 DOI: 10.1002/fsn3.1254] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 08/13/2019] [Accepted: 08/23/2019] [Indexed: 12/11/2022] Open
Abstract
The core objective of the current study was to evaluate the effect of microencapsulation on the viability and stability of probiotic bacteria in yogurt and simulated gastrointestinal conditions. For this purpose, probiotic bacteria were encapsulated with sodium alginate and carrageenan by encapsulator. Yogurt was prepared with the incorporation of free and encapsulated probiotic bacteria and was analyzed for physicochemical, microbiological, and sensorial attributes. Encapsulation and storage exhibited a significant (p < .05) effect on different parameters of yogurt. An increasing trend in syneresis and acidity while a decreasing trend in viscosity, pH, viability, and stability were observed. The value of syneresis increased from 2.27 ± 0.17 to 2.9 ± 0.14 and acidity from 0.48 ± 0.04 to 0.64 ± 0.01 during 4 weeks of storage. The value of viscosity decreased from 3.68 ± 0.21 to 2.42 ± 0.09 and pH from 4.88 ± 0.31to 4.43 ± 0.36 during 28 days of storage. Unencapsulated (free) cells exhibited poor survival. The viable cell count of probiotic bacteria in the free-state in yogurt was 9.97 logs CFU/ml at zero-day that decreased to 6.12 log CFU/ml after 28 days. However, encapsulation improved the viability of the probiotics in the prepared yogurt and GIT. The cell count of probiotics encapsulated with sodium alginate and carrageenan was 9.91 logs CFU/ml and 9.89 logs CFU/ml, respectively, at zero-day that decreased to 8.74 logs CFU/ml and 8.39 log CFU/ml, respectively. Free cells (unencapsulated) showed very poor survival. Similarly, during in vitro gastrointestinal assay, the survival rate of encapsulated probiotic bacteria in simulated gastric solution and intestinal solutions was higher than that of free cells. In the case of encapsulated bacteria, only 3 logs while for free cells, 7 log reduction was recorded. Sodium alginate microcapsules exhibited better release profile than carrageenan. Conclusively, microencapsulation improved the survival of probiotic bacteria in carrier food as well as in simulated gastrointestinal condition.
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Affiliation(s)
- Muhammad Afzaal
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Azmat Ullah Khan
- Department of Food Science and Human NutritionUniversity of Veterinary and Animal SciencesLahorePakistan
| | - Farhan Saeed
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Aftab Ahmed
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Muhammad Haseeb Ahmad
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Abid Aslam Maan
- National Institute of Science & TechnologyUniversity of AgricultureFaisalabadPakistan
| | - Tabussam Tufail
- Institute of Home & Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | | | - Shahzad Hussain
- College of Food and Agricultural SciencesKing Saud, UniversityRiyadhSaudi Arabia
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Pistacia terebinthus Resin as Yeast Immobilization Support for Alcoholic Fermentation. Foods 2019; 8:foods8040127. [PMID: 30999587 PMCID: PMC6518291 DOI: 10.3390/foods8040127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/09/2019] [Accepted: 04/12/2019] [Indexed: 01/01/2023] Open
Abstract
A natural resin retrieved from Pistacia terebinthus tree was evaluated as an immobilization carrier of Saccharomyces cerevisiae AXAZ-1 cells targeting successive fermentation batches of sugar synthetic mediums. Fermentation times below 54 h were recorded at temperatures 28–14 °C. In total, 147 compounds were detected using gas chromatography-mass spectrometry (GC-MS) analysis, including alcohols, esters, ketones, aldehydes, acids, and terpenes. Principal component analysis indicated that the state of cells (free/immobilized) and the fermentation temperature primarily affected terpenes’ composition. Importantly, no spoilage of the fermented beverages was noted during 90 days of storage at room temperature, most likely due to the high content of extracted terpenoids and phenols (up to 579.01 mg L−1 and 171.8 mg gallic acid equivalent L−1, respectively). Likewise, the developed novel biocatalyst (yeast cells immobilized within Pistacia terebinthus resin) was suitable for the production of low alcohol beverages with an enhanced aromatic profile. The obtained results revealed that the proposed bioprocess shows great commercialization potential in the new fast-growing low-alcohol beverages sector.
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Application of A Novel Potential Probiotic Lactobacillus paracasei Strain Isolated from Kefir Grains in the Production of Feta-Type Cheese. Microorganisms 2018; 6:microorganisms6040121. [PMID: 30501107 PMCID: PMC6313735 DOI: 10.3390/microorganisms6040121] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 11/17/2018] [Accepted: 11/28/2018] [Indexed: 02/04/2023] Open
Abstract
In the present study 38 lactic acid bacteria strains were isolated from kefir grains and were monitored regarding probiotic properties in a series of established in vitro tests, including resistance to low pH, resistance to pepsin and pancreatin, and tolerance to bile salts, as well as susceptibility against common antibiotics. Among them, the strain SP3 displayed potential probiotic properties. Multiplex PCR analysis indicated that the novel strain belongs to the paracasei species. Likewise, the novel strain (Lactobacillus paracasei SP3) was applied as a starter culture for Feta-type cheese production. Feta-type cheese production resulted in significantly higher acidity; lower pH; reduced counts of coliforms, yeasts and fungi; and improved quality characteristics compared with cheese samples produced with no starter culture. Finally, it is highlighted that the application of the novel strain led to Feta-type cheese production with improved overall quality and sensory characteristics.
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Terpou A, Nigam PS, Bosnea L, Kanellaki M. Evaluation of Chios mastic gum as antimicrobial agent and matrix forming material targeting probiotic cell encapsulation for functional fermented milk production. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.06.045] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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González-Menéndez E, Fernández L, Gutiérrez D, Pando D, Martínez B, Rodríguez A, García P. Strategies to Encapsulate the Staphylococcus aureus Bacteriophage phiIPLA-RODI. Viruses 2018; 10:E495. [PMID: 30217072 PMCID: PMC6163856 DOI: 10.3390/v10090495] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 12/30/2022] Open
Abstract
The antimicrobial properties of bacteriophages make them suitable food biopreservatives. However, such applications require the development of strategies that ensure stability of the phage particles during food processing. In this study, we assess the protective effect of encapsulation of the Staphylococcus aureus bacteriophage phiIPLA-RODI in three kinds of nanovesicles (niosomes, liposomes, and transfersomes). All these systems allowed the successful encapsulation of phage phiIPLA-RODI with an efficiency ranged between 62% and 98%, regardless of the concentration of components (like phospholipids and surfactants) used for vesicle formation. Only niosomes containing 30 mg/mL of surfactants exhibited a slightly lower percentage of encapsulation. Regarding particle size distribution, the values determined for niosomes, liposomes, and transfersomes were 0.82 ± 0.09 µm, 1.66 ± 0.21 µm, and 0.55 ± 0.06 µm, respectively. Importantly, bacteriophage infectivity was maintained during storage for 6 months at 4 °C for all three types of nanovesicles, with the exception of liposomes containing a low concentration of components. In addition, we observed that niosomes partially protected the phage particles from low pH. Thus, while free phiIPLA-RODI was not detectable after 60 min of incubation at pH 4.5, titer of phage encapsulated in niosomes decreased only 2 log units. Overall, our results show that encapsulation represents an appropriate procedure to improve stability and, consequently, antimicrobial efficacy of phages for application in the food processing industry.
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Affiliation(s)
- Eva González-Menéndez
- Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain.
| | - Lucía Fernández
- Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain.
| | - Diana Gutiérrez
- Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain.
| | - Daniel Pando
- Nanovex Biotechnologies S.L., Parque Tecnológico de Asturias, CEEI, 33428 Llanera, Spain.
| | - Beatriz Martínez
- Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain.
| | - Ana Rodríguez
- Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain.
| | - Pilar García
- Instituto de Productos Lácteos de Asturias (IPLA-CSIC), Paseo Río Linares s/n, 33300 Villaviciosa, Spain.
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Entrapment of Lactobacillus casei ATCC393 in the viscus matrix of Pistacia terebinthus resin for functional myzithra cheese manufacture. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.11.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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13
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Terpou A, Bosnea L, Kanellaki M, Plessas S, Bekatorou A, Bezirtzoglou E, Koutinas AA. Growth Capacity of a Novel Potential Probiotic Lactobacillus paracasei K5 Strain Incorporated in Industrial White Brined Cheese as an Adjunct Culture. J Food Sci 2018; 83:723-731. [PMID: 29473955 DOI: 10.1111/1750-3841.14079] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 01/15/2018] [Accepted: 01/16/2018] [Indexed: 12/21/2022]
Abstract
In this study, a novel potential probiotic strain Lactobacillus paracasei K5, previously isolated from traditional Greek Feta cheese and kefir grains, was evaluated as an adjunct culture for industrial white brined cheese production. Targeting industrial applications, apart from free cell cultures, a novel ready-to-use freeze-dried immobilized biocatalyst was prepared. The biocatalyst composed of L. paracasei K5 cells immobilized on delignified wheat bran prebiotic carrier and was freeze-dried without cryoprotectants. The adjunct free or immobilized culture was added separately without prior adaptation during white brined cheese manufacture and the produced cheeses were compared with commercial white brined cheeses. Several parameters that affect the acceptability and quality of the cheeses, including microbial populations, physicochemical parameters, volatile by-products and organoleptic characteristics, were analyzed through 70 days of storage. Results showed that the viability of the adjunct culture added either free or immobilized remained in high levels (7 to 8 log cfu/g) during maturation and storage. In addition, all white brined cheeses with the adjunct probiotic culture showed a sharp decrease in spoilage and pathogenic microorganisms such as enterobacteria, salmonella, staphylococci and coliforms during cheese maturation, especially when compared with the commercial white brined cheeses. Finally, after maturation time exceeded, all cheeses were characterized as safe for human consumption. Cheeses volatile compounds were significantly enhanced by the incorporated immobilized biocatalysts. These findings indicate the potential industrial use of freeze-dried ready-to-use immobilized lactobacilli as reinforcement adjunct cultures for the production of good-quality functional cheese products. PRACTICAL APPLICATION The launch on market of novel foods developed by the incorporation of functional ingredients provides potential benefits to consumers' diet and new business opportunities for producers. Probiotic food products are one significant category of functional foods. Thus, this study focused on the development of a novel ready-to-use freeze-dried potential probiotic biocatalyst for functional white brined cheese production. The potential industrial application of such biocatalysts is highlighted by their incorporation as adjunct cultures that resulted in good-quality functional cheeses.
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Affiliation(s)
- Antonia Terpou
- Food Biotechnology Group, Section of Analytical Environmental and Applied Chemistry, Dept. of Chemistry, Univ. of Patras, GR-26500, Patras, Greece
| | - Loulouda Bosnea
- Food Biotechnology Group, Section of Analytical Environmental and Applied Chemistry, Dept. of Chemistry, Univ. of Patras, GR-26500, Patras, Greece.,Hellenic Agricultural Organization DEMETER, Dairy Research Inst., Katsikas, 45221, Ioannina, Greece
| | - Maria Kanellaki
- Food Biotechnology Group, Section of Analytical Environmental and Applied Chemistry, Dept. of Chemistry, Univ. of Patras, GR-26500, Patras, Greece
| | - Stavros Plessas
- Dept. of Food Science and Technology, Faculty of Agricultural Development, Democritus Univ. of Thrace, 68200, Orestiada, Greece
| | - Argyro Bekatorou
- Food Biotechnology Group, Section of Analytical Environmental and Applied Chemistry, Dept. of Chemistry, Univ. of Patras, GR-26500, Patras, Greece
| | - Eugenia Bezirtzoglou
- Dept. of Food Science and Technology, Faculty of Agricultural Development, Democritus Univ. of Thrace, 68200, Orestiada, Greece
| | - Athanasios A Koutinas
- Food Biotechnology Group, Section of Analytical Environmental and Applied Chemistry, Dept. of Chemistry, Univ. of Patras, GR-26500, Patras, Greece
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Terpou A, Gialleli AI, Bosnea L, Kanellaki M, Koutinas AA, Castro GR. Novel cheese production by incorporation of sea buckthorn berries ( Hippophae rhamnoides L.) supported probiotic cells. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.11.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Enhanced probiotic viability and aromatic profile of yogurts produced using wheat bran ( Triticum aestivum) as cell immobilization carrier. Process Biochem 2017. [DOI: 10.1016/j.procbio.2017.01.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Bosnea LA, Kopsahelis N, Kokkali V, Terpou A, Kanellaki M. Production of a novel probiotic yogurt by incorporation of L. casei enriched fresh apple pieces, dried raisins and wheat grains. FOOD AND BIOPRODUCTS PROCESSING 2017. [DOI: 10.1016/j.fbp.2016.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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17
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Piras A, Marzouki H, Maxia A, Marengo A, Porcedda S, Falconieri D, Gonçalves MJ, Cavaleiro C, Salgueiro L. Chemical characterisation and biological activity of leaf essential oils obtained from Pistacia terebinthus growing wild in Tunisia and Sardinia Island. Nat Prod Res 2017; 31:2684-2689. [PMID: 28278668 DOI: 10.1080/14786419.2017.1289204] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In the present work the chemical compositions, measured by GC and GC-MS, of the essential oils obtained by hydrodistillation from leaves of Pistacia terebinthus collected in Bizerte (Tunisia) and Baunei (Italy) are reported. Both essential oils possessed high content of monoterpene hydrocarbons (86.3% and 90.9%, respectively), being α-pinene (62.4 vs. 35.0)%, camphene (3.0 vs. 2.4)%, β-pinene (12.1 vs. 4.5)%, terpinolene (1.7 vs. 35.2)% and β-phellandrene (3.8 vs. 4.5)% the main components. The Tunisian essential oil exhibited higher antifungal activity than the Italian one. Cryptococcus neoformans and the majority of dermatophyte strains showed more sensitivity to the Tunisian oil, when compared to Candida strains, in particular Trichophyton rubrum, Microsporum canis and Epidermophyton floccosum, with MIC and MLC values in the range (0.16-0.32) μL/mL. The results obtained support the use of the oil from Tunisia for the treatment of dermatophytosis.
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Affiliation(s)
- Alessandra Piras
- a Department of Chemical and Geological Science , University of Cagliari, Cittadella Universitaria , Monserrato , Italy
| | - Hanen Marzouki
- b Laboratory of Transmissible Diseases and Biologically Active Substances, Faculty of Pharmacy , University of Monastir , Monastir , Tunisia
| | - Andrea Maxia
- c Department of Life and Environmental Sciences , University of Cagliari , Cagliari , Italy
| | - Arianna Marengo
- c Department of Life and Environmental Sciences , University of Cagliari , Cagliari , Italy
| | - Silvia Porcedda
- a Department of Chemical and Geological Science , University of Cagliari, Cittadella Universitaria , Monserrato , Italy
| | - Danilo Falconieri
- c Department of Life and Environmental Sciences , University of Cagliari , Cagliari , Italy.,d State Institute of Higher Education "Michele Giua" , Cagliari , Italy
| | | | - Carlos Cavaleiro
- e CNC.IBILI, Faculty of Pharmacy , University of Coimbra , Coimbra , Portugal
| | - Ligia Salgueiro
- e CNC.IBILI, Faculty of Pharmacy , University of Coimbra , Coimbra , Portugal
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Xiudong X, Ying W, Xiaoli L, Ying L, Jianzhong Z. Soymilk residue (okara) as a natural immobilization carrier for Lactobacillus plantarum cells enhances soymilk fermentation, glucosidic isoflavone bioconversion, and cell survival under simulated gastric and intestinal conditions. PeerJ 2016; 4:e2701. [PMID: 27867770 PMCID: PMC5111894 DOI: 10.7717/peerj.2701] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 10/18/2016] [Indexed: 01/11/2023] Open
Abstract
Cell immobilization is an alternative to microencapsulation for the maintenance of cells in a liquid medium. However, artificial immobilization carriers are expensive and pose a high safety risk. Okara, a food-grade byproduct from soymilk production, is rich in prebiotics. Lactobacilli could provide health enhancing effects to the host. This study aimed to evaluate the potential of okara as a natural immobilizer for L. plantarum 70810 cells. The study also aimed to evaluate the effects of okara-immobilized L. plantarum 70810 cells (IL) on soymilk fermentation, glucosidic isoflavone bioconversion, and cell resistance to simulated gastric and intestinal stresses. Scanning electron microscopy (SEM) was used to show cells adherence to the surface of okara. Lactic acid, acetic acid and isoflavone analyses in unfermented and fermented soymilk were performed by HPLC with UV detection. Viability and growth kinetics of immobilized and free L. plantarum 70810 cells (FL) were followed during soymilk fermentation. Moreover, changes in pH, titrable acidity and viscosity were measured by conventional methods. For in vitro testing of simulated gastrointestinal resistance, fermented soymilk was inoculated with FL or IL and an aliquot incubated into acidic MRS broth which was conveniently prepared to simulate gastric, pancreatic juices and bile salts. Survival to simulated gastric and intestinal stresses was evaluated by plate count of colony forming units on MRS agar. SEM revealed that the lactobacilli cells attached and bound to the surface of okara. Compared with FL, IL exhibited a significantly higher specific growth rate, shorter lag phase of growth, higher productions of lactic and acetic acids, a faster decrease in pH and increase in titrable acidity, and a higher soymilk viscosity. Similarly, IL in soymilk showed higher productions of daizein and genistein compared with the control. Compared with FL, IL showed reinforced resistance to simulatedgastric and intestinal stresses in vitro that included low pH, low pH plus pepsin, pancreatin, and bile salt. Our results indicate that okara is a new potential immobilization carrier to enhance the growth and glucosidic isoflavone bioconversion activities of L. plantarum in soymilk and improve cell survivability following simulated gastric and intestinal conditions.
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Affiliation(s)
- Xia Xiudong
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences , Nanjing , Jiangsu , PR China
| | - Wang Ying
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences , Nanjing , Jiangsu , PR China
| | - Liu Xiaoli
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences , Nanjing , Jiangsu , PR China
| | - Li Ying
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences , Nanjing , Jiangsu , PR China
| | - Zhou Jianzhong
- Institute of Agro-Product Processing, Jiangsu Academy of Agricultural Sciences , Nanjing , Jiangsu , PR China
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