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Yang S, Zhao Q, Wang D, Zhang T, Zhong Z, Kwok LY, Bai M, Sun Z. The interaction between Lactobacillus delbrueckii ssp. bulgaricus M58 and Streptococcus thermophilus S10 can enhanced texture and flavor profile of fermented milk: Insights from metabolomics analysis. J Dairy Sci 2024:S0022-0302(24)01055-5. [PMID: 39098498 DOI: 10.3168/jds.2024-25217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 07/10/2024] [Indexed: 08/06/2024]
Abstract
Lactobacillus delbrueckii ssp. bulgaricus M58 (M58) and Streptococcus thermophilus S10 (S10) are 2 dairy starter strains known for their favorable fermentation characteristics. Therefore, this research aimed to study the effects of 1-d low-temperature ripening on the physicochemical properties and metabolomics of fermented milk. Initially, the performance of single (M58 or S10) and dual (M58+S10) strain fermentation was assessed, revealing that the M58+S10 combination resulted in a shortened fermentation time, a stable gel structure, and desirable viscosity, suggesting positive strain interactions. Subsequently, non-targeted metabolomics analyses using LC-MS and GC-MS were performed to comparatively analyze M58+S10 fermented milk samples collected at the end of fermentation and after 1-d low-temperature ripening. The results showed a significant increase in almost all small peptides and dodecanedioic acid in the samples after one day of ripening, while there was a substantial decrease in indole and amino acid metabolites. Moreover, notable increases were observed in high-quality flavor compounds, such as geraniol, delta-nonalactone, 1-hexanol,2-ethyl-, methyl jasmonate, and undecanal. This study provides valuable insights into the fermentation characteristics of the dual bacterial starter consisting of M58 and S10 strains and highlights the specific contribution of the low-temperature ripening step to the overall quality of fermented milk.
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Affiliation(s)
- Shujuan Yang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Qian Zhao
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Dan Wang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Ting Zhang
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Zhi Zhong
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Lai-Yu Kwok
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Mei Bai
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China.
| | - Zhihong Sun
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, 010018, China; Key Laboratory of Dairy Products Processing, Ministry of Agriculture and Rural Affairs, Inner Mongolia Agricultural University, Hohhot, 010018, China; Inner Mongolia Key Laboratory of Dairy Biotechnology and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China.
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Szymanska I, Zbikowska A, Onacik-Gür S. New Insight into Food-Grade Emulsions: Candelilla Wax-Based Oleogels as an Internal Phase of Novel Vegan Creams. Foods 2024; 13:729. [PMID: 38472842 DOI: 10.3390/foods13050729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/22/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
Cream-type emulsions containing candelilla wax-based oleogels (EC) were analyzed for their physicochemical properties compared to palm oil-based creams (EP). The microstructure, rheological behavior, stability, and color of the creams were determined by means of non-invasive and invasive techniques. All the formulations exhibited similar color parameters in CIEL*a*b* space, unimodal-like size distribution of lipid particles, and shear-thinning properties. Oleogel-based formulations were characterized by higher viscosity (consistency index: 172-305 mPa·s, macroscopic viscosity index: 2.19-3.08 × 10-5 nm-2) and elasticity (elasticity index: 1.09-1.45 × 10-3 nm-2), as well as greater resistance to centrifugal force compared to EP. Creams with 3, 4, or 5% wax (EC3-5) showed the lowest polydispersity indexes (PDI: 0.80-0.85) 24 h after production and the lowest instability indexes after environmental temperature changes (heating at 90 °C, or freeze-thaw cycle). EC5 had particularly high microstructural stability. In turn, candelilla wax content ≥ 6% w/w accelerated the destabilization processes of the cream-type emulsions due to disintegration of the interfacial layer by larger lipid crystals. It was found that candelilla wax-based lipids had great potential for use as palm oil substitutes in the development of novel vegan cream analogues.
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Affiliation(s)
- Iwona Szymanska
- Department of Food Technology and Assessment, Institute of Food Science, Warsaw University of Life Sciences-SGGW, 159C Nowoursynowska Street, 02-776 Warsaw, Poland
| | - Anna Zbikowska
- Department of Food Technology and Assessment, Institute of Food Science, Warsaw University of Life Sciences-SGGW, 159C Nowoursynowska Street, 02-776 Warsaw, Poland
| | - Sylwia Onacik-Gür
- Department of Meat and Fat Technology, Prof. Waclaw Dabrowski Institute of Agriculture and Food Biotechnology-State Research Institute, 36 Rakowiecka Street, 02-532 Warsaw, Poland
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Jiao B, Wu B, Fu W, Guo X, Zhang Y, Yang J, Luo X, Dai L, Wang Q. Effect of roasting and high-pressure homogenization on texture, rheology, and microstructure of walnut yogurt. Food Chem X 2023; 20:101017. [PMID: 38144733 PMCID: PMC10740087 DOI: 10.1016/j.fochx.2023.101017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/14/2023] [Accepted: 11/18/2023] [Indexed: 12/26/2023] Open
Abstract
The effect of roasting and high-pressure homogenization on the quality of yogurt made from peeled walnut kernels was explored in this study. The G' and G'' values of yogurt made from walnuts roasted at high temperatures were reduced. The water-holding capacity and hardness of walnut yogurt were reduced to 47.73% and 24.22 g, respectively. Increasing the homogenization pressure reduced the particle size of the walnut yogurt to 20.50 μm. Homogenized walnut milk at 150 MPa increased the viscosity, hardness, and consistency of yogurt product from 11.71 to 16.74 Pa.s, from 30.01 to 71.63 g and from 283.17 to 455.24 g·s, respectively. The confocal laser scanning microscope observation demonstrated a reduction in the size of fat and protein micelles in the homogenized yogurt samples, resulting in a compact structure. This study will contribute valuable scientific insights to the advancement of plant-based yogurt quality.
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Affiliation(s)
- Bo Jiao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, P.O. Box 5109, Beijing, 100193, China
| | - Bicong Wu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, P.O. Box 5109, Beijing, 100193, China
- College of Food Science and Engineering, Qingdao Agricultural University/Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Weiming Fu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, P.O. Box 5109, Beijing, 100193, China
- College of Life Science and Technology, Xinjiang University, Xinjiang, China
| | - Xin Guo
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, P.O. Box 5109, Beijing, 100193, China
| | - Yu Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jie Yang
- College of Life Science and Technology, Xinjiang University, Xinjiang, China
| | | | - Lei Dai
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, P.O. Box 5109, Beijing, 100193, China
- College of Food Science and Engineering, Qingdao Agricultural University/Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Qiang Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, P.O. Box 5109, Beijing, 100193, China
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4
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Li D, Lai M, Wang P, Ma H, Li H, Wang R, Wu X. Effects of Different Prebiotics on the Gel Properties of Milk Protein and the Structural Features of Yogurt. Gels 2023; 9:863. [PMID: 37998953 DOI: 10.3390/gels9110863if:] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 07/26/2024] Open
Abstract
The impact of prebiotics on the structural characteristics of yogurt is an important aspect of evaluating its functional properties. This study aimed to evaluate and compare the effects of several commonly used prebiotics, including fructooligosaccharide (FOS), galactooligosaccharide (GOS), inulin (INU), polydextrose (PDX), and xylooligosaccharide (XOS), on the gel properties of milk protein and the structural features, with respect to the texture and rheology, of stirred yogurt during and after fermentation. The results revealed that the supplementation of INU, PDX, and XOS was involved in the construction of protein networks during fermentation, promoting a viscous and more elastic gel structure, due to the enhanced protein-water interactions. This resulted in a significant increase (p < 0.05) in structural stability (higher critical strain (γc) and greater thixotropy), firmness, cohesiveness, and rheology (G' and G″) and a significant decrease (p < 0.05) in the loss of yogurt during centrifugation. Conversely, the supplementation of GOS and FOS did not appear to be involved in the construction of the protein network and barely affected the rheological properties of the gel during fermentation. However, a significant increase (p < 0.05) in viscosity and firmness, and a slight decrease (p > 0.05) in loss during centrifugation were still observed in the yogurt. These findings could be useful for a comprehensive assessment of the application potential of these prebiotics in yogurt, when combined with their respective prebiotic properties.
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Affiliation(s)
- Dongdong Li
- Mengniu Hi-Tech Dairy Product Beijing Co., Ltd., Beijing 101100, China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100190, China
| | - Mengxuan Lai
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Hohhot 011500, China
| | - Pengjie Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100190, China
| | - Hairan Ma
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Hohhot 011500, China
| | - Hongliang Li
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Hohhot 011500, China
| | - Ran Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100190, China
| | - Xiuying Wu
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Hohhot 011500, China
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Li D, Lai M, Wang P, Ma H, Li H, Wang R, Wu X. Effects of Different Prebiotics on the Gel Properties of Milk Protein and the Structural Features of Yogurt. Gels 2023; 9:863. [PMID: 37998953 PMCID: PMC10670424 DOI: 10.3390/gels9110863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/21/2023] [Accepted: 10/25/2023] [Indexed: 11/25/2023] Open
Abstract
The impact of prebiotics on the structural characteristics of yogurt is an important aspect of evaluating its functional properties. This study aimed to evaluate and compare the effects of several commonly used prebiotics, including fructooligosaccharide (FOS), galactooligosaccharide (GOS), inulin (INU), polydextrose (PDX), and xylooligosaccharide (XOS), on the gel properties of milk protein and the structural features, with respect to the texture and rheology, of stirred yogurt during and after fermentation. The results revealed that the supplementation of INU, PDX, and XOS was involved in the construction of protein networks during fermentation, promoting a viscous and more elastic gel structure, due to the enhanced protein-water interactions. This resulted in a significant increase (p < 0.05) in structural stability (higher critical strain (γc) and greater thixotropy), firmness, cohesiveness, and rheology (G' and G″) and a significant decrease (p < 0.05) in the loss of yogurt during centrifugation. Conversely, the supplementation of GOS and FOS did not appear to be involved in the construction of the protein network and barely affected the rheological properties of the gel during fermentation. However, a significant increase (p < 0.05) in viscosity and firmness, and a slight decrease (p > 0.05) in loss during centrifugation were still observed in the yogurt. These findings could be useful for a comprehensive assessment of the application potential of these prebiotics in yogurt, when combined with their respective prebiotic properties.
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Affiliation(s)
- Dongdong Li
- Mengniu Hi-Tech Dairy Product Beijing Co., Ltd., Beijing 101100, China;
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100190, China;
| | - Mengxuan Lai
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Hohhot 011500, China; (M.L.); (H.M.); (H.L.)
| | - Pengjie Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100190, China;
| | - Hairan Ma
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Hohhot 011500, China; (M.L.); (H.M.); (H.L.)
| | - Hongliang Li
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Hohhot 011500, China; (M.L.); (H.M.); (H.L.)
| | - Ran Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Department of Nutrition and Health, China Agricultural University, Beijing 100190, China;
| | - Xiuying Wu
- Inner Mongolia Mengniu Dairy (Group) Co., Ltd., Hohhot 011500, China; (M.L.); (H.M.); (H.L.)
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Li Z, Tian-Tian L, Aziz T, Min Z, Sarwar A, Zhennai Y, Alharbi M, Alshammari A, Alasmari AF. Purification of Galacto-oligosaccharide (GOS) by fermentation with Kluyveromyces lactis and Interaction between GOS and casein under simulated acidic fermentation conditions. World J Microbiol Biotechnol 2023; 39:342. [PMID: 37828125 DOI: 10.1007/s11274-023-03791-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/04/2023] [Indexed: 10/14/2023]
Abstract
In the enzymatic synthesis of galacto-oligosaccharide (GOS), the primary by-products include glucose, galactose and unreacted lactose. This This study was aimed to provide a method to to purify GOS by yeat fermentation and explore the interaction between GOS and CAS with a view for expanding the prospects of GOS application in the food industry. The crude GOS(25.70 g/L) was purified in this study using the fermentation method with Kluyveromyces lactis CICC 1773. Optimal conditions for purification with the yeast were 75 g/L of the yeast inoculation rate and 50 g/L of the initial crude GOS concentration for 12 h of incubation. After removing ethanol produced by yeast by low-temperature distillation, GOS content could reach 90.17%. A study of the interaction between GOS and casein (CAS) in a simulated acidic fermentation system by D-(+)-gluconic acid δ-lactone (GDL) showed that the GOS/CAS complexes with higher GOS concentrations, e.g., 4% and 6% (w/v), was more viscoelastic with higher water-holding capacity, but decreased hardness, elasticity, and cohesiveness at 6% (w/v) of GOS. The addition of GOS to CAS suspension significantly caused (p<0.05) decreased particle sizes of the formed GOS/CAS complexes, and the suspension system became more stable. FT-IR spectra confirmed the existence of different forms of molecular interactions between CAS and GOS, e.g., hydrogen bonding and hydrophobic interaction, and the change of secondary structure after CAS binding to GOS.
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Affiliation(s)
- Zhihui Li
- Key Laboratory of Geriatric Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Ministry of Education, Beijing Technology and Business University, No. 11 Fucheng Road, Hai-Dian District, Beijing, 100048, China
| | - Lai Tian-Tian
- Key Laboratory of Geriatric Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Ministry of Education, Beijing Technology and Business University, No. 11 Fucheng Road, Hai-Dian District, Beijing, 100048, China
| | - Tariq Aziz
- Key Laboratory of Geriatric Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Ministry of Education, Beijing Technology and Business University, No. 11 Fucheng Road, Hai-Dian District, Beijing, 100048, China
- Laboratory of Animal Health, Department of Agriculture, Food Hygiene and Quality, University of Ioannina, Arta, 47132, Greece
| | - Zhang Min
- Key Laboratory of Agro-Products Primary Processing, Academy of Agricultural Planning and Engineering, MARABeijing, 100125, China
| | - Abid Sarwar
- Key Laboratory of Geriatric Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Ministry of Education, Beijing Technology and Business University, No. 11 Fucheng Road, Hai-Dian District, Beijing, 100048, China
| | - Yang Zhennai
- Key Laboratory of Geriatric Nutrition and Health, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Ministry of Education, Beijing Technology and Business University, No. 11 Fucheng Road, Hai-Dian District, Beijing, 100048, China.
| | - Metab Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdulrahman Alshammari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdullah F Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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Fundamental understanding of the role of gelatin in stabilizing milk protein systems during acidification. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Impact of cheese milk cold storage on milk coagulation properties, calcium contents, and cheese yield. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Gilbert A, Turgeon SL. Studying stirred yogurt microstructure and its correlation to physical properties: A review. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106970] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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10
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Comparative study of the micro-rheological properties and microstructure of edible oil gels prepared by amino acid gelator. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Giuliano E, Fresta M, Cosco D. Development and characterization of poloxamine 908-hydrogels for potential pharmaceutical applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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Qu X, Nazarenko Y, Yang W, Nie Y, Zhang Y, Li B. Effect of Oat β-Glucan on the Rheological Characteristics and Microstructure of Set-Type Yogurt. Molecules 2021; 26:4752. [PMID: 34443340 PMCID: PMC8400676 DOI: 10.3390/molecules26164752] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/23/2021] [Accepted: 08/02/2021] [Indexed: 11/17/2022] Open
Abstract
The oat β-glucan (OG) was added into set-type yogurt as a functional ingredient, in order to evaluate effects on the rheological characteristics and microstructure of set-type yogurt. When the OG concentration increased from 0 to 0.3%, the WHC gradually increased. At 0.3% OG, the set-type yogurt had the highest WHC of 94.67%. Additionally, the WHC continuously decreased, reaching the lowest WHC (about 80%) at 0.5% OG. When 0.3% OG was added, the highest score of sensory evaluation was about 85. The rheological result showed that the fermentation process went through the changes as follows: solid → liquid → solid → liquid. The addition of 0.3% OG decreased the fermentation time of set-type yogurt by about 16 min, making yogurt more inclined to be liquid. The acidity of set-type yogurt with OG was slightly higher. The result of microstructure showed that the addition of OG destroyed the three-dimensional network structure of yogurt, and some spherical aggregate particles could be clearly observed at 0.3% OG. Overall, this study provided a theoretical basis for the application of OG in set-type yogurt.
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Affiliation(s)
- Xiaoqing Qu
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China; (X.Q.); (W.Y.); (Y.N.); (Y.Z.)
- Department of Milk and Meat Technology, Sumy National Agrarian University, 40021 Sumy, Ukraine;
- Henan Engineering Research Center of Fruit and Vegetable Processing and Quality Safety Control, Xinxiang 453003, China
| | - Yuliya Nazarenko
- Department of Milk and Meat Technology, Sumy National Agrarian University, 40021 Sumy, Ukraine;
| | - Wei Yang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China; (X.Q.); (W.Y.); (Y.N.); (Y.Z.)
- Henan Engineering Research Center of Fruit and Vegetable Processing and Quality Safety Control, Xinxiang 453003, China
| | - Yuanyang Nie
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China; (X.Q.); (W.Y.); (Y.N.); (Y.Z.)
- Henan Engineering Research Center of Fruit and Vegetable Processing and Quality Safety Control, Xinxiang 453003, China
| | - Yongsheng Zhang
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China; (X.Q.); (W.Y.); (Y.N.); (Y.Z.)
| | - Bo Li
- School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China; (X.Q.); (W.Y.); (Y.N.); (Y.Z.)
- Henan Engineering Research Center of Fruit and Vegetable Processing and Quality Safety Control, Xinxiang 453003, China
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14
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Zhai Z, Xie S, Zhang H, Yi H, Hao Y. Homologous Over-Expression of Chain Length Determination Protein EpsC Increases the Molecular Weight of Exopolysaccharide in Streptococcus thermophilus 05-34. Front Microbiol 2021; 12:696222. [PMID: 34354691 PMCID: PMC8329376 DOI: 10.3389/fmicb.2021.696222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/29/2021] [Indexed: 11/30/2022] Open
Abstract
In Streptococcus thermophilus, EpsC is a polysaccharide co-polymerase which is involved in determining the chain length of EPS synthesized by the Wzx/Wzy-dependent pathway. Our previous study found that there was a positive correlation between transcription level of epsC and molecular weight of EPS in S. thermophilus 05-34. To further investigate the effects of EpsC on EPS biosynthesis, this gene was over-expressed in S. thermophilus 05-34 in this study. Reverse transcription qPCR and Western blotting confirmed the successful transcription and translation of epsC in 05-34, respectively. The yield of EPS was not affected by the over-expression of EpsC. Gas chromatography-mass spectrometry (GC-MS) showed that the monosaccharide composition was still composed of galactose and glucose in a molar ratio of 1.0:0.8, whereas high performance gel permeation chromatography (HPGPC) indicated that the molecular weight of EPS was increased from 4.62 × 105 Da to 9.17 × 105 Da by the over-expression of EpsC. In addition, S. thermophilus 05epsC which could produce higher molecular weight EPS improved the viscoelasticity and water-holding capacity of yogurt, but significantly reduced the level of syneresis in yogurt. In summary, these results indicated that homologous over-expression of EpsC in S. thermophilus could increase the molecular weight of EPS and improve the microrheological or physical properties of yogurt.
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Affiliation(s)
- Zhengyuan Zhai
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Municipality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Shuxin Xie
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Hongxing Zhang
- Department of Food Science, Beijing University of Agriculture, Beijing, China
| | - Huaxi Yi
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Yanling Hao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Municipality, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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Raak N, Jaros D, Rohm H. Acid-induced gelation of enzymatically cross-linked caseinates: Small and large deformation rheology in relation to water holding capacity and micro-rheological properties. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Aljewicz M, Mulet-Cabero AI, Wilde PJ. A comparative study of the influence of the content and source of β-glucan on the rheological, microstructural properties and stability of milk gel during acidification. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106486] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Exopolysaccharides from Lactococcus lactis affect manufacture, texture and sensory properties of concentrated acid milk gel suspensions (fresh cheese). Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2020.104854] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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18
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Bai M, Huang T, Guo S, Wang Y, Wang J, Kwok LY, Dan T, Zhang H, Bilige M. Probiotic Lactobacillus casei Zhang improved the properties of stirred yogurt. FOOD BIOSCI 2020. [DOI: 10.1016/j.fbio.2020.100718] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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19
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Abstract
The influence of the amount of inulin addition (3%, 6%, 9%, 12% or 15% w/w) on the physicochemical properties of natural yogurt was analyzed. The acidity (titration; pH), texture parameters (penetration test), viscosity curves (rotational rheometer), microrheology (macroscopic viscosity index, MVI; elasticity index, EI; solid-liquid balance—SLB; multi-speckle diffusing-wave spectroscopy, MS-DWS) and physical stability (syneresis; LUMiSizer test) of yogurts were investigated. All samples were non-Newtonian pseudoplastic liquids. The sample with 15% inulin content presented an approx. 4% higher pH value (4.34), 3-fold greater MVI and almost 5-fold higher penetration force, compared to the control sample (0% of inulin). In turn, the use of inulin addition in the range of 3–15% w/w resulted in a reduction of syneresis (p < 0.05). A linear decrease in the values of instability indexes and sedimentation velocities was noted in the function of inulin content increase (LUMiSizer test). The application of inulin (in the range of 3–15% w/w) as a functional additive to yogurts significantly contributed to enhancement of their physical stability. Summing up, the possibility of obtaining natural yogurts with a high content of this prebiotic has been demonstrated, thus such products can be classified as functional foods and a health claim can be put on the label.
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20
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Giuliano E, Paolino D, Cristiano MC, Fresta M, Cosco D. Rutin-Loaded Poloxamer 407-Based Hydrogels for In Situ Administration: Stability Profiles and Rheological Properties. NANOMATERIALS 2020; 10:nano10061069. [PMID: 32486354 PMCID: PMC7352531 DOI: 10.3390/nano10061069] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/22/2020] [Accepted: 05/25/2020] [Indexed: 01/04/2023]
Abstract
Rutin is a flavone glycoside contained in many plants, and exhibits antioxidant, anti-inflammatory, anticancer, and wound-healing properties. The main disadvantage related to the use of this molecule for pharmaceutical application is its poor bioavailability, due to its low solubility in aqueous media. Poloxamer 407-hydrogels show interesting thermo-sensitive properties that make them attractive candidates as pharmaceutical formulations. The hydrophobic domains in the chemical structure of the copolymer, a polymer made up of two or more monomer species, are useful for retaining poorly water-soluble compounds. In this investigation various poloxamer 407-based hydrogels containing rutin were developed and characterized as a function of the drug concentration. In detail, the Turbiscan stability index, the micro- and dynamic rheological profiles and in vitro drug release were investigated and discussed. Rutin (either as a free powder or solubilized in ethanol) did not modify the stability or the rheological properties of these poloxamer 407-based hydrogels. The drug leakage was constant and prolonged for up to 72 h. The formulations described are expected to represent suitable systems for the in situ application of the bioactive as a consequence of their peculiar versatility.
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Affiliation(s)
- Elena Giuliano
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Campus Universitario “S. Venuta”, Viale S. Venuta, I-88100 Catanzaro, Italy; (E.G.); (M.F.)
| | - Donatella Paolino
- Department of Experimental and Clinical Medicine, University “Magna Græcia” of Catanzaro, Campus Universitario “S. Venuta”, Viale S. Venuta, I-88100 Catanzaro, Italy; (D.P.); (M.C.C.)
| | - Maria Chiara Cristiano
- Department of Experimental and Clinical Medicine, University “Magna Græcia” of Catanzaro, Campus Universitario “S. Venuta”, Viale S. Venuta, I-88100 Catanzaro, Italy; (D.P.); (M.C.C.)
| | - Massimo Fresta
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Campus Universitario “S. Venuta”, Viale S. Venuta, I-88100 Catanzaro, Italy; (E.G.); (M.F.)
| | - Donato Cosco
- Department of Health Sciences, University “Magna Græcia” of Catanzaro, Campus Universitario “S. Venuta”, Viale S. Venuta, I-88100 Catanzaro, Italy; (E.G.); (M.F.)
- Correspondence: ; Tel.: +39-0961-369-4119
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21
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Zhang H, Yang H, Zhou B, Li X, Zhao H, Wang F, Kang W, Sarsenbekuly B, Aidarova S, Gabdullin M. Effects of cyclodextrin polymer on the gelation of amphiphilic polymer in inclusion complex. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112850] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Ceniti C, Froiio F, Gagliardi A, Britti D, Paolino D, Costanzo N. Observations on passive microrheology for monitoring the fermentation process in yoghurt. Int Dairy J 2020. [DOI: 10.1016/j.idairyj.2019.104604] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Moussier M, Huc-Mathis D, Michon C, Bosc V. Rational design of a versatile lab-scale stirred milk gel using a reverse engineering logic based on microstructure and textural properties. J FOOD ENG 2019. [DOI: 10.1016/j.jfoodeng.2018.12.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Surber G, Mende S, Jaros D, Rohm H. Clustering of Streptococcus thermophilus Strains to Establish a Relation between Exopolysaccharide Characteristics and Gel Properties of Acidified Milk. Foods 2019; 8:E146. [PMID: 31052192 PMCID: PMC6560422 DOI: 10.3390/foods8050146] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 04/24/2019] [Accepted: 04/28/2019] [Indexed: 11/16/2022] Open
Abstract
In situ produced extracellular polysaccharides (EPS) from lactic acid bacteria are generally known to affect the texture of fermented dairy products; however, the interplay between EPS and product properties is still poorly understood. The aim of this study was to establish a relationship between concentration and properties of EPS, and gel formation of milk analysed by noninvasive Multispeckle Diffusing Wave Spectroscopy. Twenty Streptococcus thermophilus strains were classified with respect to EPS concentration (8-126 mg GE/kg) and ropiness (thread length: 15-80 mm). Five groups identified by cluster analysis demonstrate the high strain-to-strain variability even within one species of lactic acid bacteria. Results from acidification and gelation experiments averaged per cluster indicate that fermentation time and gel stiffness is higher for strains that produce ropy EPS. A further increase in gel stiffness was detected for strains that also produced cell-bound EPS, which underlines the importance of both ropy and cell-bound EPS for improving acid gel properties. The results may be helpful for a proper selection of EPS-producing starter cultures.
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Affiliation(s)
- Georg Surber
- Institute of Natural Materials Technology, Technische Universität Dresden, 01062 Dresden, Germany.
| | - Susann Mende
- Institute of Natural Materials Technology, Technische Universität Dresden, 01062 Dresden, Germany.
| | - Doris Jaros
- Institute of Natural Materials Technology, Technische Universität Dresden, 01062 Dresden, Germany.
| | - Harald Rohm
- Institute of Natural Materials Technology, Technische Universität Dresden, 01062 Dresden, Germany.
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25
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He J, Han Y, Liu M, Wang Y, Yang Y, Yang X. Effect of 2 types of resistant starches on the quality of yogurt. J Dairy Sci 2019; 102:3956-3964. [PMID: 30827555 DOI: 10.3168/jds.2018-15562] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 01/10/2019] [Indexed: 01/15/2023]
Abstract
This study investigated the effects of resistant starch (RS) 2 (a high-amylose corn starch) and RS3 (physically modified corn starch) on yogurt quality. Yogurt containing Bifidobacterium BB-12 was treated with RS2 or RS3 to a final concentration of 1.5%, with the control group receiving 1.5% (wt/wt) of sucrose. Multispeckle diffusing wave spectroscopy and scanning electron microscopy were used to investigate the effect of the resistant starches on the gelation process and microstructure of yogurt. The quality of the yogurt treatments was evaluated using viable counts of Bifidobacterium BB-12 and all viable cells, titratable acidity, amount of whey separation, and viscosity during storage. The resistant starches affected the progress of gelation and microstructure and decreased the decline of viable counts of Lactobacillus. Notably, RS3 effectively protected the Bifidobacterium BB-12, increased the viscosity, and decreased titratable acidity. Our results suggested that RS could improve the quality of yogurt and have a more probiotic effect. Further studies could lead to optimization in yogurt processing by mixing these 2 types of RS to determine their best usage and explore their interactions with proteins.
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Affiliation(s)
- Jun He
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China
| | - Yumei Han
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China.
| | - Min Liu
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China
| | - Yanan Wang
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China
| | - Yang Yang
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China
| | - Xujin Yang
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China
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26
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Zhou Y, Jiang R, Perkins WS, Cheng Y. Morphology evolution and gelation mechanism of alkali induced konjac glucomannan hydrogel. Food Chem 2018; 269:80-88. [DOI: 10.1016/j.foodchem.2018.05.116] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 05/22/2018] [Accepted: 05/25/2018] [Indexed: 10/16/2022]
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27
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Formation and structural properties of acid-induced casein–agar double networks: Role of gelation sequence. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2018.07.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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