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He G, Yan J, Liang L, Liu W, Chen S, Chen P. Characterization and biological activities of polysaccharides extracted from Auricularia auricula with different extraction methods. Prep Biochem Biotechnol 2024; 54:859-871. [PMID: 38149618 DOI: 10.1080/10826068.2023.2297689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Polysaccharides derived from Auricularia auricula exhibit diverse biological activities and hold significant potential for commercial utilization as functional food ingredients. In this investigation, polysaccharides from A. auricula were obtained using six extraction techniques (ammonium oxalate solution extraction, sodium hydroxide solution extraction, hot water extraction, pectinase and cellulase-assisted extraction, ultrasonic-assisted extraction, and microwave-assisted extraction). Subsequently, a comprehensive comparison was conducted to evaluate their physicochemical properties and biological functionalities. The ammonium oxalate solution extraction method yielded a higher extraction rate (11.76%) and polysaccharide content (84.12%), as well as a higher uronic acid content (10.13%). Although the six Auricularia polysaccharides had different molecular weight distributions, monosaccharide molar ratios, similar monosaccharide compositions, and characteristic functional groups of polysaccharides, they exhibited different surface morphology. In vitro assays showed that polysaccharides extracted by ammonium oxalate solution possessed good scavenging ability against DPPH free radical, hydroxyl free radical and superoxide anion free radical as well as reduction power of iron ion. At the same time, both polysaccharides extracted by ammonium oxalate solution and sodium hydroxide solution promoted NO production in mouse macrophages along with the secretion of cytokines TNF-α, IL-1β, and IL-6. These results indicated significant differences in the structure and characteristics among Auricularia polysaccharides prepared by various extraction methods, which may be related to the variety or origin of A. auricula; furthermore, their bioactivities varied accordingly in vitro assays where the ammonium oxalate solution extraction method was found more beneficial for obtaining high-quality bioactive Auricularia polysaccharides.
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Affiliation(s)
- Gang He
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, China
| | - Jun Yan
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, China
| | - Li Liang
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, China
| | - Wei Liu
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, China
| | - Sizhu Chen
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, China
| | - Peng Chen
- Key Laboratory of Medicinal and Edible Plants Resources Development of Sichuan Education Department, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu, China
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Wang J, Ma Z, Wang C, Chen W. Melanin in Auricularia auricula: biosynthesis, production, physicochemical characterization, biological functions, and applications. Food Sci Biotechnol 2024; 33:1751-1758. [PMID: 38752125 PMCID: PMC11091032 DOI: 10.1007/s10068-024-01542-y] [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: 11/10/2023] [Revised: 01/16/2024] [Accepted: 02/07/2024] [Indexed: 05/18/2024] Open
Abstract
Auricularia auricular (A. auricula), a nutritious fungus and traditional medicinal resource, is known for melanin. This review aims to summarize the research progress on melanin in A. auricula, specifically focusing on biosynthesis, fermentation production, extraction processes, physicochemical characterization, biological functions, and applications. The biosynthesis of melanin in A. auricula primarily involves the oxidative polymerization reaction of phenolic compounds. To enhance melanin production, strategies such as deep fermentation culture, selection of optimal fermentation materials, and optimization of the culture medium have been employed. Various extraction processes have been compared to determine their impact on the physicochemical properties and stability of melanin. Moreover, the antioxidant and antibiofilm activities of A. auricula melanin, as well as its potential beneficial effects on the human body through in vivo experiments, have been investigated. These findings provide valuable insights into the application of A. auricula melanin and serve as a reference for future research in this field. Graphical abstract
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Affiliation(s)
- Jiaying Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, 100048 People’s Republic of China
| | - Zihui Ma
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, 100048 People’s Republic of China
| | - Chengtao Wang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, 100048 People’s Republic of China
| | - Wei Chen
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing, 100048 People’s Republic of China
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Barcan AS, Barcan RA, Vamanu E. Therapeutic Potential of Fungal Polysaccharides in Gut Microbiota Regulation: Implications for Diabetes, Neurodegeneration, and Oncology. J Fungi (Basel) 2024; 10:394. [PMID: 38921380 PMCID: PMC11204944 DOI: 10.3390/jof10060394] [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: 04/03/2024] [Revised: 05/04/2024] [Accepted: 05/22/2024] [Indexed: 06/27/2024] Open
Abstract
This review evaluates the therapeutic effects of polysaccharides derived from mushroom species that have medicinal and edible properties. The fungal polysaccharides were recently studied, focusing on their modulation of the gut microbiota and their impact on various diseases. The study covers both clinical and preclinical studies, detailing the results and highlighting the significant influence of these polysaccharides on gut microbiota modulation. It discusses the potential health benefits derived from incorporating these polysaccharides into the diet for managing chronic diseases such as diabetes, neurodegenerative disorders, and cancer. Furthermore, the review emphasizes the interaction between fungal polysaccharides and the gut microbiota, underscoring their role in modulating the gut microbial community. It presents a systematic analysis of the findings, demonstrating the substantial impact of fungal polysaccharides on gut microbiota composition and function, which may contribute to their therapeutic effects in various chronic conditions. We conclude that the modulation of the gut microbiota by these polysaccharides may play a crucial role in mediating their therapeutic effects, offering a promising avenue for further research and potential applications in disease prevention and treatment.
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Affiliation(s)
- Alexandru Stefan Barcan
- Faculty of Biotechnology, University of Agricultural Sciences and Veterinary Medicine, 011464 Bucharest, Romania
- School of Biodiversity, One Health & Veterinary Medicine, University of Glasgow, Graham Kerr Building, Glasgow G12 8QQ, UK
| | | | - Emanuel Vamanu
- Faculty of Biotechnology, University of Agricultural Sciences and Veterinary Medicine, 011464 Bucharest, Romania
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Li H, Tan P, Lei W, Yang S, Fan L, Yang T, Guo C, Gao Z. Investigation the nutritional properties of Auricularia auricula pulp fermented with Lactobacillus strains and their effects on gut microbiota. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:2502-2517. [PMID: 37985238 DOI: 10.1002/jsfa.13150] [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] [Received: 06/28/2023] [Revised: 11/13/2023] [Accepted: 11/21/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Auricularia auricula is rich in bioactive components, and microbial fermentation can further dramatically increase its content and bioavailability. However, there are few studies on the relationship between fermented A. auricula pulp (FAAP) and gut microbiota. In this study, standard strains Lactobacillus plantarum 21801 and 21805 purchased from the China Center of Industrial Culture Collection were used to ferment A. auricula pulp at a ratio of 2:1, with an inoculum of 5%, a fermentation temperature of 31 °C, and a fermentation time of 22 h. The nutritional properties, aroma, and color of FAAP and their effects on the body characteristics of mice and the structure and abundance of gut microbiota are discussed. RESULTS The results showed that, compared with A. auricula pulp, FAAP significantly increased the nutritional properties while maintaining favorable sensory quality and flavor profiles. Among them, the content of total polyphenols and total flavonoids reached 22.04 μg mL-1 and 20.56 μg mL-1 respectively, and the 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid free-radical scavenging rate increased to 73.21%. The consumption of FAAP had no negative effects on weight or liver and kidney function in mice and dramatically enhanced the antioxidant capacity in the liver and serum. The production of short-chain fatty acids in the gut was promoted, the relative abundance of beneficial bacteria (Lactobacillus, Bifidobacterium, norank_f__Muribaculaceae and unclassified_f__Lachnospiraceae) increased, and the growth of some pathogenic bacteria (Helicobacter, Mucispirillum, and Alloprevotella) was inhibited. CONCLUSION These findings demonstrate that FAAP is rich in nutrients and has unique functional properties that promote host health and regulate the gut microbiota. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Hongcai Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Pei Tan
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Wenzhi Lei
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Siqi Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Lingjia Fan
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Taihao Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Chunfeng Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, Yangling, People's Republic of China
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Gong P, Pei S, Long H, Yang W, Yao W, Li N, Wang J, Zhao Y, Chen F, Xie J, Guo Y. Potential inhibitory effect of Auricularia auricula polysaccharide on advanced glycation end-products (AGEs). Int J Biol Macromol 2024; 262:129856. [PMID: 38423908 DOI: 10.1016/j.ijbiomac.2024.129856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/19/2024] [Accepted: 01/29/2024] [Indexed: 03/02/2024]
Abstract
In this study, a novel polysaccharide, AAP-2S, was extracted from Auricularia auricula, and the anti-glycosylation effect of AAP-2S and its underlying mechanisms were investigated using an in vitro BSA-fructose model and a cellular model. The results demonstrated the inhibiting formation of advanced glycation end products (AGEs) in vitro by AAP-2S. Concurrently, it attenuated oxidative damage to proteins in the model, preserved protein sulfhydryl groups from oxidation, reduced protein carbonylation, prevented structural alterations in proteins, and decreased the formation of β-crosslinked structures. Furthermore, AAP-2S demonstrated metal-chelating capabilities. GC-MS/MS-based metabolomics were employed to analyze changes in metabolic profiles induced by AAP-2S in a CML-induced HK-2 cell model. Mechanistic investigations revealed that AAP-2S could mitigate glycosylation and ameliorate cell fibrosis by modulating the RAGE/TGF-β/NOX4 pathway. This study provides a foundational framework for further exploration of Auricularia auricular polysaccharide as a natural anti-AGEs agent, paving the way for its potential development and application as a food additive.
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Affiliation(s)
- Pin Gong
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Shuya Pei
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Hui Long
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Wenjuan Yang
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Wenbo Yao
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Nan Li
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Jing Wang
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yanni Zhao
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Fuxin Chen
- School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Jianwu Xie
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Yuxi Guo
- School of Food science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; School of Biological and Pharmaceutical Sciences, Shaanxi University of Science and Technology, Xi'an 710021, China.
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Heng BL, Wu FY, Liu JH, Ouyang JM. Antioxidant Activity of Auricularia auricula Polysaccharides with Different Molecular Weights and Cytotoxicity Difference of Polysaccharides Regulated CaOx to HK-2 Cells. Bioinorg Chem Appl 2023; 2023:9968886. [PMID: 38161486 PMCID: PMC10757664 DOI: 10.1155/2023/9968886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/02/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024] Open
Abstract
Objective This study aimed to investigate the growth of calcium oxalate (CaOx) crystals regulated by Auricularia auricular polysaccharides (AAPs) with different viscosity-average molecular weights (Mv), the toxicity of AAP-regulated CaOx crystals toward HK-2 cells, and the prevention and treatment capabilities of AAPs for CaOx stones. Methods The scavenging capability and reducing capacity of four kinds of AAPs (Mv of 31.52, 11.82, 5.86, and 3.34 kDa) on hydroxyl, ABTS, and DPPH free radicals and their capability to chelate divalent iron ions were detected. AAP-regulated CaOx crystals were evaluated by using zeta potential, thermogravimetric analysis, X-ray diffraction, and scanning electron microscopy. The cytotoxicity of AAP-regulated crystals was evaluated through examination of cell viability, cell death, malondialdehyde (MDA) content, and cell surface hyaluronic acid (HA) expression. Results The in vitro antioxidant activities of the four AAPs were observed in the following order: AAP0 < AAP1 < AAP2 < AAP3. Thus, AAP3, which had the smallest Mv, had the strongest antioxidant activity. AAPs can inhibit the growth of CaOx monohydrate (COM), induce the formation of CaOx dihydrate (COD), and reduce the degree of crystal aggregation, with AAP3 exhibiting the strongest capability. Cell experiments showed the lowest cytotoxicity in AAP3-regulated CaOx crystals, along with the lowest MDA content, HA expression, and cell mortality. In addition, COD presented less cytotoxicity than COM. Meanwhile, the cytotoxicity of blunt crystals was less than that of sharp crystals. Conclusion AAPs, particularly AAP3, showed an excellent antioxidative capability in vitro, and AAP3-regulated CaOx crystals presented minimal cytotoxicity.
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Affiliation(s)
- Bao-Li Heng
- Yingde Center, Institute of Kidney Surgery, Jinan University, Guangzhou, Guangdong, China
- Department of Urology, People's Hospital of Yingde City, Yingde, China
| | - Fan-Yu Wu
- Yingde Center, Institute of Kidney Surgery, Jinan University, Guangzhou, Guangdong, China
- Department of Urology, People's Hospital of Yingde City, Yingde, China
| | - Jing-Hong Liu
- Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou 510632, China
| | - Jian-Ming Ouyang
- Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou 510632, China
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Chen SK, Wang X, Guo YQ, Song XX, Yin JY, Nie SP. Exploring the partial degradation of polysaccharides: Structure, mechanism, bioactivities, and perspectives. Compr Rev Food Sci Food Saf 2023; 22:4831-4870. [PMID: 37755239 DOI: 10.1111/1541-4337.13244] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/22/2023] [Accepted: 09/04/2023] [Indexed: 09/28/2023]
Abstract
Polysaccharides are promising biomolecules with lowtoxicity and diverse bioactivities in food processing and clinical drug development. However, an essential prerequisite for their applications is the fine structure characterization. Due to the complexity of polysaccharide structure, partial degradation is a powerful tool for fine structure analysis, which can effectively provide valid information on the structure of backbone and branching glycosidic fragments of complex polysaccharides. This review aims to conclude current methods of partial degradation employed for polysaccharide structural characterization, discuss the molecular mechanisms, and describe the molecular structure and solution properties of degraded polysaccharides. In addition, the effects of polysaccharide degradation on the conformational relationships between the molecular structure and bioactivities, such as antioxidant, antitumor, and immunomodulatory activities, are also discussed. Finally, we summarize the prospects and current challenges for the partial degradation of polysaccharides. This review will be of great value for the scientific elucidation of polysaccharide fine structures and potential applications.
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Affiliation(s)
- Shi-Kang Chen
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang, Jiangxi Province, China
| | - Xin Wang
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang, Jiangxi Province, China
| | - Yu-Qing Guo
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang, Jiangxi Province, China
| | - Xiao-Xiao Song
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang, Jiangxi Province, China
| | - Jun-Yi Yin
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang, Jiangxi Province, China
| | - Shao-Ping Nie
- State Key Laboratory of Food Science and Resources, China-Canada Joint Lab of Food Science and Technology (Nanchang), Nanchang University, Nanchang, Jiangxi Province, China
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Zhou Y, Jia Y, Xu N, Tang L, Chang Y. Auricularia auricula-judae (Bull.) polysaccharides improve obesity in mice by regulating gut microbiota and TLR4/JNK signaling pathway. Int J Biol Macromol 2023; 250:126172. [PMID: 37558018 DOI: 10.1016/j.ijbiomac.2023.126172] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/20/2023] [Accepted: 08/05/2023] [Indexed: 08/11/2023]
Abstract
Obesity has emerged as a crucial factor impacting people's lives, and gut microbiota disorders contribute to its development and progression. Auricularia auricula-judae (Bull.) polysaccharides (AAPs), a traditional functional food in Asia, exhibit potential anti-obesity effects. However, the specific mechanism still needs to be further confirmed. This study investigated the beneficial effects and specific mechanisms of AAPs on obesity. Firstly, AAPs showed significant improvements in overweight, insulin resistance, glucose and lipid metabolism disorders, and liver damage in obese mice. Additionally, AAPs ameliorated gut microbiota disorders, promoting the proliferation of beneficial bacteria like Lactobacillus and Roseburia, resulting in increased levels of SCFAs, folate, and cobalamin. Simultaneously, AAPs inhibited the growth of harmful bacteria, thereby protecting intestinal barrier function, improving endotoxemia, and decreasing the levels of inflammatory factors such as TNF-α and IL-6. Furthermore, AAPs can inhibit the TLR4/JNK signaling pathway while promoting the activation of AKT and AMPK. Importantly, our study underscored the pivotal role of gut microbiota in the anti-obesity effects of AAPs, as evidenced by fecal microbiota transplantation experiments. In conclusion, our findings elucidated that AAPs improve obesity by regulating gut microbiota and TLR4/JNK signaling pathway, offering novel perspectives for further conclusion the anti-obesity potential of AAPs.
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Affiliation(s)
- Yingjun Zhou
- East China University of Science and Technology, People's Republic of China
| | - Yuezhong Jia
- East China University of Science and Technology, People's Republic of China
| | - Nuo Xu
- East China University of Science and Technology, People's Republic of China
| | - Lihua Tang
- East China University of Science and Technology, People's Republic of China
| | - Yaning Chang
- East China University of Science and Technology, People's Republic of China.
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Gebreyohannes G, Sbhatu DB. Wild Mushrooms: A Hidden Treasure of Novel Bioactive Compounds. Int J Anal Chem 2023; 2023:6694961. [PMID: 37781342 PMCID: PMC10541307 DOI: 10.1155/2023/6694961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 10/03/2023] Open
Abstract
Secondary metabolites are hidden gems in mushrooms. Understanding these secondary metabolites' biological and pharmacological effects can be aided by identifying them. The purpose of this work was to profile the mycochemical components of the extracts of Auricularia auricula judae, Microporus xanthopus, Termitomyces umkowaani, Trametes elegans, and Trametes versicolor to comprehend their biological and pharmacological capabilities. Mushroom samples were collected from Kenya's Arabuko-Sokoke and Kakamega National Reserved Forests and identified using morphological and molecular techniques. Chloroform, 70% ethanol, and hot water solvents were used to extract the mycochemical components. Gas chromatography mass spectrometry (GC-MS) was used to analyze the chloroform, 70% ethanol, and hot water extracts of all the species examined. A total of 51 compounds were isolated from all extracts and classified as carboxylic acids, esters, phenols, fatty acids, alcohol, epoxides, aldehydes, fatty aldehydes, isoprenoid lipids, and steroids. Tetracosamethyl-cyclododecasiloxane (18.90%), oleic acid (72.90%), phenol, 2, 6-bis (1, 1-dimethylethyl)-4-methyl-, and methylcarbamate (26.56%) were all found in high concentrations in A. auricular judae, M. xanthopus, T. umkowaani, T. elegans, and T. versicolor, respectively. Fatty acids make up the majority of the compounds isolated from the T. elegans chloroform extract and the T. umkowaani 70% ethanol extract, respectively. Particularly, these fatty acids play crucial roles in the anti-inflammatory, hypocholesterolemic, anticancer, and antibiofilm formation activities. These bioactive elements indicate that the extracts of five wild mushrooms may be reliable sources of secondary metabolites for therapeutic development. Therefore, additional research is required to comprehend the usefulness of these chemicals in many functional areas and to improve the present understanding of macrofungi.
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Affiliation(s)
- Gebreselema Gebreyohannes
- Department of Biological and Chemical Engineering, Mekelle Institute of Technology, Mekelle University, Mekele, Ethiopia
| | - Desta Berhe Sbhatu
- Department of Biological and Chemical Engineering, Mekelle Institute of Technology, Mekelle University, Mekele, Ethiopia
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Gafforov Y, Rašeta M, Rapior S, Yarasheva M, Wang X, Zhou L, Wan-Mohtar WAAQI, Zafar M, Lim YW, Wang M, Abdullaev B, Bussmann RW, Zengin G, Chen J. Macrofungi as Medicinal Resources in Uzbekistan: Biodiversity, Ethnomycology, and Ethnomedicinal Practices. J Fungi (Basel) 2023; 9:922. [PMID: 37755030 PMCID: PMC10532728 DOI: 10.3390/jof9090922] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023] Open
Abstract
Interest in edible and medicinal macrofungi is millennial in terms of their uses in health and food products in Central Asia, while interest in inedible and medicinal macrofungi has grown in popularity in recent years. Edible and inedible medicinal basidiomycetes were collected during field surveys from different regions of Uzbekistan. The morphological characters and similarity assessment of rDNA-Internal Transcribed Spacer sequence data were used to measure diversity and habitat associations. A number of 17 species of medicinal macrofungi of ethnomycological and medicinal interest was found associated with 23 species of trees and shrubs belonging to 11 families and 14 genera. Polyporaceae and Hymenochaetaceae were represented by the highest number of species followed by Ganodermataceae, Fomitopsidaceae, Auriculariaceae, Cerrenaceae, Grifolaceae, Phanerochaetaceae, Laetiporaceae, Schizophyllaceae, and Stereaceae. The highest number of medicinal basidiomycete species was reported in the following host genera: Acer, Betula, Celtis, Crataegus, Juglans, Juniperus, Lonicera, Malus, Morus, Platanus, Populus, Prunus, Quercus, and Salix. An updated list of edible and inedible medicinal mushrooms identified in Uzbekistan, their morphological characteristics, and phylogenetic placement are given for the first time. Information is provided on their uses in traditional and modern medicine. Their bioactive compounds and extracts can be applied as medicines, as well as food and cosmetic ingredients.
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Affiliation(s)
- Yusufjon Gafforov
- New Uzbekistan University, Tashkent 100007, Uzbekistan
- Central Asian University, Tashkent 111221, Uzbekistan
- Mycology Laboratory, Institute of Botany, Academy of Sciences of Republic of Uzbekistan, Tashkent 100125, Uzbekistan
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Milena Rašeta
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Sylvie Rapior
- CEFE, CNRS, University of Montpellier, EPHE, IRD, 15 Avenue Charles Flahault, CS 14491, CEDEX 5, 34093 Montpellier, France
- Laboratory of Botany, Phytochemistry and Mycology, Faculty of Pharmacy, 15 Avenue Charles Flahault, CS 14491, CEDEX 5, 34093 Montpellier, France
| | - Manzura Yarasheva
- Tashkent International University of Education, Tashkent 100207, Uzbekistan
| | - Xuewei Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 101408, China
| | - Liwei Zhou
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Wan Abd Al Qadr Imad Wan-Mohtar
- Functional Omics and Bioprocess Development Laboratory, Institute of Biological Sciences, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia
| | - Muhammad Zafar
- Department of Plant Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Young Woon Lim
- School of Biological Sciences, Institute of Microbiology, Seoul National University, Seoul 08826, Republic of Korea
| | - Mengcen Wang
- State Key Laboratory of Rice Biology, Ministry of Agricultural and Rural Affairs Laboratory of Molecular Biology of Crop Pathogens and Insects, Zhejiang University, Hangzhou 310058, China
| | | | - Rainer W. Bussmann
- Department of Ethnobotany, State Museum of Natural History, 76133 Karlsruhe, Germany;
- Department of Ethnobotany, Institute of Botany and Bakuriani Alpine Botanical Garden, Ilia State University, Botanical Street 1, 0105 Tbilisi, Georgia
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selçuk University, Konya 42130, Turkey
| | - Jiajia Chen
- College of Landscape Architecture, Jiangsu Vocational College of Agriculture and Forestry, Zhenjiang 212400, China
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11
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Dai G, Wang J, Zheng J, Xia C, Wang Y, Duan B. Bioactive polysaccharides from lotus as potent food supplements: a review of their preparation, structures, biological features and application prospects. Front Nutr 2023; 10:1171004. [PMID: 37448668 PMCID: PMC10338014 DOI: 10.3389/fnut.2023.1171004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 06/13/2023] [Indexed: 07/15/2023] Open
Abstract
Lotus is a famous plant of the food and medicine continuum for millennia, which possesses unique nutritional and medicinal values. Polysaccharides are the main bioactive component of lotus and have been widely used as health nutritional supplements and therapeutic agents. However, the industrial production and application of lotus polysaccharides (LPs) are hindered by the lack of a deeper understanding of the structure-activity relationship (SAR), structural modification, applications, and safety of LPs. This review comprehensively comments on the extraction and purification methods and structural characteristics of LPs. The SARs, bioactivities, and mechanisms involved are further evaluated. The potential application and safety issues of LPs are discussed. This review provides valuable updated information and inspires deeper insights for the large scale development and application of LPs.
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Affiliation(s)
- Guona Dai
- College of Pharmaceutical Science, Dali University, Dali, China
| | - Jiale Wang
- College of Pharmaceutical Science, Dali University, Dali, China
| | - Jiamei Zheng
- College of Pharmaceutical Science, Dali University, Dali, China
| | - Conglong Xia
- College of Pharmaceutical Science, Dali University, Dali, China
| | - Yaping Wang
- Formula-Pattern Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou, Guangdong, China
| | - Baozhong Duan
- College of Pharmaceutical Science, Dali University, Dali, China
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12
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Kalitukha L, Bleha R, Synytsya A, Kraska J, Sari M. Hydrocolloids from the Mushroom Auricularia heimuer: Composition and Properties. J Fungi (Basel) 2023; 9:681. [PMID: 37367617 DOI: 10.3390/jof9060681] [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: 05/11/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/28/2023] Open
Abstract
The ear- to shell-shaped fruiting bodies of the genus Auricularia are widely used as food and in traditional medicinal remedies. This study was primarily focused on the composition, properties and potential use of the gel-forming extract from Auricularia heimuer. The dried extract contained 50% soluble homo- and heteropolysaccharides, which were mainly composed of mannose and glucose, acetyl residues, glucuronic acid and a small amount of xylose, galactose, glucosamine, fucose, arabinose and rhamnose. The minerals observed in the extract included approximately 70% potassium followed by calcium. Among the fatty and amino acids, 60% unsaturated fatty acids and 35% essential amino acids could be calculated. At both acidic (pH 4) and alkaline (pH 10) conditions, the thickness of the 5 mg/mL extract did not change in a temperature range from -24 °C to room temperature, but decreased statistically significantly after storage at elevated temperature. At neutral pH, the studied extract demonstrated good thermal and storage stability, as well as a moisture retention capacity comparable to the high molecular weight sodium hyaluronate, a well-known moisturizer. Hydrocolloids that can be sustainably produced from Auricularia fruiting bodies offer great application potential in the food and cosmetic industries.
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Affiliation(s)
| | - Roman Bleha
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Andriy Synytsya
- Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Janina Kraska
- Competence Center for Applied Mycology and Environmental Studies, Niederrhein University of Applied Sciences, 41065 Moenchengladbach, Germany
| | - Miriam Sari
- Competence Center for Applied Mycology and Environmental Studies, Niederrhein University of Applied Sciences, 41065 Moenchengladbach, Germany
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13
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Tu J, Adhikari B, Brennan MA, Luo S, Cheng P, Bai W, Brennan CS. Acidic polysaccharides from black ear and silver ear mushrooms modulated the release and transport of glucose from gelatinised sorghum starch during digestion. Food Chem 2023; 411:135426. [PMID: 36669339 DOI: 10.1016/j.foodchem.2023.135426] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
This study investigated the ability of acidic polysaccharides from Auricularia auricula-judae (AAP) and Tremella fuciformis (TFP) mushrooms to modulate starch digestion and absorption. Gelatinised sorghum starch was used as starch-rich material, and its digestion and glucose transport were determined through in vitro digestion/Caco-2 cells model. Results showed that fortification with 0.6% AAP/TFP increased the proportion of high molecular weight α-dextrin and delayed glucose diffusion from digested starch gels. Gelatinisation of sorghum starch with AAP and TFP reduced the amount of transported glucose by 34.2% and 38.7%, respectively. This reduction was related to the inhibition of AAP/TFP on α-glucosidase and the difficulty in the hydrolysis of high molecular weight maltooligosaccharides. The potential bonding of AAP/TFP to glucose transporter (SGLT1) also impeded glucose transport. The findings suggest that AAP/TFP could act as natural hypoglycaemic agents used in starch-based foods and provide a better understanding of the hypoglycaemic mechanism of mushroom polysaccharides.
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Affiliation(s)
- Juncai Tu
- School of Science, RMIT University, GPO Box 2474, Melbourne, VIC 3001, Australia
| | - Benu Adhikari
- School of Science, RMIT University, GPO Box 2474, Melbourne, VIC 3001, Australia
| | - Margaret Anne Brennan
- Department of Wine, Food and Molecular Biosciences, Lincoln University, PO Box 84, Lincoln 7647, Christchurch, New Zealand
| | - Siyuan Luo
- College of Light Industry and Food Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Ping Cheng
- College of Light Industry and Food Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Weidong Bai
- College of Light Industry and Food Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
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14
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Yu T, Wu D, Liang B, Wang J, Shang X, Wu Q. Preparation, characterization of Auricularia auricula polysaccharide-based films and application in meat preservation. Int J Biol Macromol 2023:125242. [PMID: 37301343 DOI: 10.1016/j.ijbiomac.2023.125242] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 05/23/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
In order to find a degradable biofilm,edible films of Auricularia auricula polysaccharide (AAP) were prepared and characterized optically, morphologically, and mechanically in terms of barrier, bactericidal, and antioxidant properties and evaluated for their potential application in cold meat packaging. The results showed that films prepared from 40 % AAP had the best mechanical properties, with smooth and homogeneous surfaces, good water barrier properties and also good preservation of cold meat. Thus, Auricularia auricula polysaccharide is a composite membrane additive with great potential for application.
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Affiliation(s)
- Te Yu
- Changchun University, Nanguan District, Changchun, Jilin Province 130022, China
| | - Di Wu
- Changchun University, Nanguan District, Changchun, Jilin Province 130022, China
| | - Bin Liang
- Changchun University, Nanguan District, Changchun, Jilin Province 130022, China
| | - Jiaming Wang
- Changchun University, Nanguan District, Changchun, Jilin Province 130022, China
| | - Xinzhu Shang
- Changchun University, Nanguan District, Changchun, Jilin Province 130022, China
| | - Qiong Wu
- Changchun University, Nanguan District, Changchun, Jilin Province 130022, China.
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15
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Yang M, Qian Z, Zhan Q, Zhong L, Hu Q, Zhao L. Application of definitive screening design to optimization of the protein extraction and functional properties of proteins in Auricularia auricula. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1226-1236. [PMID: 36085582 DOI: 10.1002/jsfa.12217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/27/2022] [Accepted: 09/09/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Auricularia auricula (A. auricula) is one of the most abundant sources of plant protein in edible fungi. Problems of low protein yield exist in traditional methods of protein extraction such as alkali extraction and ultrasonic-assisted alkali after pretreatment with enzymes. Thus, the protein extraction process was investigated and optimized using a definitive screening design from A. auricula to improve the protein yield under practical operating conditions of temperature, the concentration of NaCl, meal/water ratio, extraction time and pH. RESULTS The yield of protein isolates of the isoelectric-ammonium sulfate precipitation (9.34% w/w) was obtained almost three times and the protein content (55.23% w/w) was approximately 1.6 times that of the traditional extraction method of isoelectric precipitation. Next, the optimized method was successfully applied to the analysis of the functional properties of the protein. A. auricula protein isolate (AAPI) had better solubility, emulsification and foaming capacity than soy protein isolate (SPI) and pea protein isolate (PPI), and the oil holding capacity of AAPI exhibited extremely well, which was approximately five times that of SPI and six times that of PPI. The texture properties of AAPI gel were similar to those of PPI gels. CONCLUSION AAPI extracted by the optimized method had a satisfactory yield and had the potential to substitute plant-originated proteins in food processing. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Mengdie Yang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zheng Qian
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Qiping Zhan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Lei Zhong
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Qiuhui Hu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing, China
| | - Liyan Zhao
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
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16
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Effects of Different pH on Properties of Heat-induced Auricularia auricula-judae polysaccharide-whey protein isolate Composite Gels. FOOD STRUCTURE 2023. [DOI: 10.1016/j.foostr.2023.100317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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17
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Tu J, Adhikari B, Brennan MA, Cheng P, Bai W, Brennan CS. Interactions between sorghum starch and mushroom polysaccharides and their effects on starch gelatinization and digestion. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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18
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Mechanism Underlying Light Intensity-Induced Melanin Synthesis of Auricularia heimuer Revealed by Transcriptome Analysis. Cells 2022; 12:cells12010056. [PMID: 36611851 PMCID: PMC9818193 DOI: 10.3390/cells12010056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/19/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Auricularia heimuer is a traditional edible and medicinal mushroom, which is widely used in biochemical research and is regarded as a good dietary supplement. The color of the ear-like fruiting body is an important indicator of its commercial quality. However, the mechanism by which light intensity influences the melanin synthesis of A. heimuer remains unclear. Here, we show that fruiting body color is significantly affected by light intensity. Transcriptional profiles of the fruiting bodies of A. heimuer grown in different light intensities were further analyzed. More differentially expressed genes (DEGs) were identified with a greater light intensity difference. A total of 1388 DEGs were identified from six comparisons, including 503 up-regulated genes and 885 down-regulated genes. The up-regulated genes were mainly associated with light sensing via photoreceptors, signal transduction via the mitogen-activated protein kinase (MAPK) signaling pathway, and melanin synthesis via the tyrosine metabolic pathway. Therefore, the genes involved in these processes may participate in regulating melanin synthesis under high light intensity. This insight into the transcriptional regulation of A. heimuer to light intensity should help to further comprehensively elucidate the underlying mechanism of light-induced melanin synthesis.
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19
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Galf-containing polysaccharides from medicinal molds: Sources, structures and bioactive properties. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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20
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Non-thermal treatments for the control of endogenous formaldehyde from Auricularia auricula and their effects on its nutritional characteristics. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Formation Optimization, Characterization and Antioxidant Activity of Auricularia auricula-judae Polysaccharide Nanoparticles Obtained via Antisolvent Precipitation. Molecules 2022; 27:molecules27207037. [PMID: 36296630 PMCID: PMC9608221 DOI: 10.3390/molecules27207037] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/10/2022] [Accepted: 10/14/2022] [Indexed: 11/17/2022] Open
Abstract
Auricularia auricula-judae polysaccharide (AAP)-based nanoparticles (NPs) prepared via an anti-solvent precipitation approach were studied. Response surface methodology (RSM) design was carried out on the basis of single factor experiments, using average size and polydispersity index (PDI) as indicators. The optimal preparation conditions were determined to include an AAP concentration of 1 mg/mL, a pH of 8, and an anti-solvent/solvent volume ratio of 6. The average particle sizes of the AAP-NPs, PDI and electrical characteristic (ζ-potential) were found to be 150.27 ± 3.21 nm, 0.135 ± 0.012 and -31.10 ± 0.52 mV, respectively. Furthermore, Fourier transform infrared spectroscopy (FTIR) was used to determine the chemical structure of the AAP-NPs. It was observed that the intensity of AAP-NPs in the wide spectral band of 3000-3750 cm-1 was significantly stronger than that of the AAP, as was the characteristic peak of carboxyl anion, and the characteristic band moved to shorter wavelengths. Subsequent thermogravimetric analysis showed that the antisolvent precipitation method improved the thermal stability of the AAP, while scanning electron microscopy (SEM) and X-ray diffraction (XRD) showed that the morphology of AAP-NPs was uniform and well-distributed, and that their single crystal structures had remained unaffected during the process. Moreover, the DPPH and ABTS scavenging activities of AAP-NPs were increased, and the IC50 values were 0.544 ± 0.241 mg/mL and 0.755 ± 0.226 mg/mL, respectively.
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22
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Liu R, Meng X, Mo C, Wei X, Ma A. Melanin of fungi: from classification to application. World J Microbiol Biotechnol 2022; 38:228. [PMID: 36149606 DOI: 10.1007/s11274-022-03415-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/11/2022] [Indexed: 11/25/2022]
Abstract
Melanin is a secondary metabolite composed of complex heterogeneous polymers. Fungal melanin is considered to be a sustainable and biodegradable natural pigment and has a variety of functional properties and biological activities. On one hand, due to its own specific properties it can play the role of antioxidant, anti-radiation, adsorption, and photoprotection. On the other hand, it has good biological activities such as hepatoprotective effect, hypolipidemic effect and anti-cancer. Therefore, it is widely used in various fields of daily life, including dyeing, food, biomedical and commercial industry. It is conducive to environmental protection and human health. However, the insolubility of fungal melanin in water, acids and organic solvents has been an obstacle to its commercial applications. Thus, the chemical modification methods of fungal melanin are summarized to increase its solubility and expand the application fields. Although fungal melanin has been used in many industries, as the structure and function of fungal melanin and modified melanin are further studied, more functional properties and bioactivities are expected to be discovered for a wide range of applications in the future.
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Affiliation(s)
- Ruofan Liu
- College of Food Science and Technology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Xianfu Meng
- College of Food Science and Technology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Cuiyuan Mo
- College of Food Science and Technology, Huazhong Agricultural University, 430070, Wuhan, China
| | - Xuetuan Wei
- College of Food Science and Technology, Huazhong Agricultural University, 430070, Wuhan, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, 430070, Wuhan, China
| | - Aimin Ma
- College of Food Science and Technology, Huazhong Agricultural University, 430070, Wuhan, China.
- Key Laboratory of Agro-Microbial Resources and Utilization, Ministry of Agriculture, 430070, Wuhan, China.
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23
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Sun Z, Cong Y, Li T, Meng X, Zhang F. Enhancement of nutritional, sensory and storage stability by lactic fermentation of Auricularia auricula. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:5172-5180. [PMID: 35289935 DOI: 10.1002/jsfa.11869] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/22/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Auricularia auricula is of important nutritional value, although its utilization or consumption are mainly under the original form with no further processing. Indeed, its liquid or other fermented products contribute to improved digestion and absorption of nutrients. RESULTS The present study used Lactiplantibacillus plantarum to ferment A. auricula juice after an initial processing comprising superfine grinding and high-pressure homogenization. The content of probiotic bacteria in the juice of A. auricula reached 8.48 log colony-forming units mL-1 after 24 h of fermentation under 37 °C, with the addition of 3% carbon and 0.3% nitrogen source. Meanwhile, the antioxidant activity was increased approximately two-fold, as well as the enriched volatile flavors, both effectively cover up the unwelcoming earthy smell of A. auricula. Furthermore, the storage stability was also strengthened up to 28 days. CONCLUSION In summary, the introduced fermentation process not only realized the purpose of improving the nutritional value of A. auricula, but also effectively upgraded the sensory evaluation of A. auricula products. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Zhengchen Sun
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Yu Cong
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Tianyu Li
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xianghong Meng
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Fang Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
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24
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Mounika A, Ilangovan B, Mandal S, Shraddha Yashwant W, Priya Gali S, Shanmugam A. Prospects of ultrasonically extracted food bioactives in the field of non-invasive biomedical applications - A review. ULTRASONICS SONOCHEMISTRY 2022; 89:106121. [PMID: 35987106 PMCID: PMC9403563 DOI: 10.1016/j.ultsonch.2022.106121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/27/2022] [Accepted: 08/10/2022] [Indexed: 05/15/2023]
Abstract
Foods incorporated with bioactive compounds, called nutraceuticals, can fight or prevent or alleviate diseases. The contribution of nutraceuticals or phytochemicals to non-invasive biomedical applications is increasing. Although there are many traditional methods for extracting bioactive compounds or secondary metabolites, these processes come with many disadvantages like lower yield, longer process time, high energy consumption, more usage of solvent, yielding low active principles with low efficacy against diseases, poor quality, poor mass transfer, higher extraction temperature, etc. However, nullifying all these disadvantages of a non-thermal technology, ultrasound has played a significant role in delivering them with higher yield and improved bio-efficacy. The physical and chemical effects of acoustic cavitation are the crux of the output. This review paper primarily discusses the ultrasound-assisted extraction (USAE) of bioactives in providing non-invasive prevention and cure to diseases and bodily dysfunctions in human and animal models. The outputs of non-invasive bioactive components in terms of yield and the clinical efficacy in either in vitro or in vitro conditions are discussed in detail. The non-invasive biomedical applications of USAE bioactives providing anticancer, antioxidant, cardiovascular health, antidiabetic, and antimicrobial benefits are analyzed in-depth and appraised. This review additionally highlights the improved performance of USAE compounds against conventionally extracted compounds. In addition, an exhaustive analysis is performed on the role and application of the food bioactives in vivo and in vitro systems, mainly for promoting these efficient USAE bioactives in non-invasive biomedical applications. Also, the review explores the recovery of bioactives from the less explored food sources like cactus pear fruit, ash gourd, sweet granadilla, basil, kokum, baobab, and the food processing industrial wastes like peel, pomace, propolis, wine residues, bran, etc., which is rare in literature.
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Affiliation(s)
- Addanki Mounika
- Food Processing Business Incubation Centre, National Institute of Food Technology, Entrepreneurship and Management - Thanjavur, India
| | - Bhaargavi Ilangovan
- Food Processing Business Incubation Centre, National Institute of Food Technology, Entrepreneurship and Management - Thanjavur, India
| | - Sushmita Mandal
- Food Processing Business Incubation Centre, National Institute of Food Technology, Entrepreneurship and Management - Thanjavur, India
| | - Waghaye Shraddha Yashwant
- Food Processing Business Incubation Centre, National Institute of Food Technology, Entrepreneurship and Management - Thanjavur, India
| | - Swetha Priya Gali
- Food Processing Business Incubation Centre, National Institute of Food Technology, Entrepreneurship and Management - Thanjavur, India
| | - Akalya Shanmugam
- Food Processing Business Incubation Centre, National Institute of Food Technology, Entrepreneurship and Management - Thanjavur, India; Centre of Excellence in Non-Thermal Processing, National Institute of Food Technology, Entrepreneurship and Management - Thanjavur, India.
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25
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Ultrasonic disruption effects on the extraction efficiency, characterization, and bioactivities of polysaccharides from Panax notoginseng flower. Carbohydr Polym 2022; 291:119535. [DOI: 10.1016/j.carbpol.2022.119535] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 11/17/2022]
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26
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Ren Y, Huang J, Wang X, Wang Y, Li H, Yue T, Gao Z. Effects of sulfite treatment on the quality of black fungus. Food Chem 2022; 385:132685. [PMID: 35290951 DOI: 10.1016/j.foodchem.2022.132685] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/23/2022] [Accepted: 03/08/2022] [Indexed: 11/19/2022]
Abstract
In the present study, the color, total sugar, contents of soluble protein, total polyphenols, total flavonoids, and soluble vitamins, and other indicators of black fungus treated with sodium metabisulfite under different conditions were measured to evaluate the sensory and nutritional changes in black fungus after sulfite treatment. The results showed that use of sodium metabisulfite increased the lightness of black fungus, significantly increased the contents of total polyphenols and reducing sugars in the fungus (p < 0.05), increased the content of soluble protein, and decreased the content of total flavonoids. In addition, sodium metabisulfite destroyed vitamin C and B1 in black fungus. When the concentration of sodium metabisulfite was 0.5% and the soaking time 20 or 30 min, the color of black fungus improved markedly, and nutrients were not negatively affected. Therefore, the use of sodium metabisulfite improved the quality of fungus to a certain extent.
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Affiliation(s)
- Yichen Ren
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Jintao Huang
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Xingnan Wang
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Yaqin Wang
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Hongcai Li
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, 712100 Yangling, Shaanxi, People's Republic of China.
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27
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Izham I, Avin F, Raseetha S. Systematic Review: Heat Treatments on Phenolic Content, Antioxidant Activity, and Sensory Quality of Malaysian Mushroom: Oyster (Pleurotus spp.) and Black Jelly (Auricularia spp.). FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2022. [DOI: 10.3389/fsufs.2022.882939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Pleurotus spp. and Auricularia spp. are popular species consumed by the Malaysian community. Recently, due to increased awareness, both mushrooms are also being consumed for their bioactive compounds, ergothioneine, and antioxidant properties and has been used since earlier ages as therapeutic remedies. The bioactive compounds such as phenol, flavonoid and ergothioneine found in both Pleurotus and Auricularia mushrooms were explored. Differences in heat treatments (microwave, hot air drying, and solar drying) and cooking methods may affect the content of bioactive compounds and their properties. Similarly, sensory acceptance by consumers may be affected too. Antioxidant properties using DPPH (1,1-diphenyl-2-picryl-hydrazyl) radical and FRAP (ferric reducing antioxidant power) assay of both raw and heat-treated mushrooms are included. Microwave drying retained color characteristics and bioactive compounds in both mushrooms. To add value to this review, a survey on the consumption pattern of Pleurotus and Auricularia species among Malaysians has been conducted online and concluded that Pleurotus species is the most considered species compared to Auricularia mushroom and almost half of the respondents were not aware that heat may deplete nutritional contents in mushroom despite agreeing both gave beneficial health in diets.
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Liu D, Ji J, Li J, Shaikh F, Ye M. Lipid‐lowering effect of extracellular polyphenol extracts from
Lachnum singerianum
in high‐fat‐diet‐fed mice. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Dong Liu
- College of Biotechnology and Food Engineering Hefei University of Technology Hefei, Anhui, 230009 China
- Department of Horticulture and Landscape Anqing Vocational and Technical College 99 North of Tianzhushan Road, Anqing 246003 Anhui China
| | - Jing Ji
- College of Biotechnology and Food Engineering Hefei University of Technology Hefei, Anhui, 230009 China
| | - Jinglei Li
- College of Biotechnology and Food Engineering Hefei University of Technology Hefei, Anhui, 230009 China
| | - Farnaz Shaikh
- College of Biotechnology and Food Engineering Hefei University of Technology Hefei, Anhui, 230009 China
| | - Ming Ye
- College of Biotechnology and Food Engineering Hefei University of Technology Hefei, Anhui, 230009 China
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29
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Development of black fungus-based 3D printed foods as dysphagia diet: Effect of gums incorporation. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107173] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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30
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Zhou R, Wang Y, Wang Z, Liu K, Wang Q, Bao H. Effects of Auricularia auricula-judae polysaccharide on pasting, gelatinization, rheology, structural properties and in vitro digestibility of kidney bean starch. Int J Biol Macromol 2021; 191:1105-1113. [PMID: 34560153 DOI: 10.1016/j.ijbiomac.2021.09.110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 09/16/2021] [Indexed: 12/30/2022]
Abstract
Auricularia auricula-judae polysaccharide (AP) has unique molecular structures and multiple bioactivities with excellent gel-forming property and thermal tolerance. However, few researches focus on the interactions between AP and legume starches. In this study, the effects of AP on the pasting, gelatinization, rheology, microstructure, and in vitro digestibility of kidney bean starch (KBST) were evaluated. The pasting, gelling and structural properties of AP-KBST mixtures were characterized by rapid visco analyzer, rheometry, texture analyzer, laser particle analyzer, low-field nuclear magnetic resonance, Fourier transform infrared spectroscopy and scanning electron microscopy, respectively. And an in vitro method was employed to measure the digestibility of AP-KBST composites. The pasting viscosity, swelling degree of starch granules, viscoelasticity, gel strength, cold storage stability and water-retention capacity of KBST were enhanced with increasing AP concentration. The combination of AP and KBST exhibited a higher short-range ordered and a firmer and denser structure than that of KBST alone. Moreover, AP increased the contents of resistant starch and slowly digestible starch, which were positively correlated with the storage modulus and the degree of order, thereby suggesting that the formation of strong and ordered gel network structure by synergistic interactions between AP and KBST was responsible for the reduced starch digestibility.
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Affiliation(s)
- Rui Zhou
- College of Food Science and Technology, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Yijun Wang
- College of Food Science and Technology, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Zaixu Wang
- College of Food Science and Technology, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Ke Liu
- Hubei Key Laboratory of Low Dimensional Optoelectronic Material and Devices, Hubei University of Arts and Science, Xiangyang 441053, China
| | - Qi Wang
- Guelph Food Research Centre, Agriculture and Agri-Food Canada, 93 Stone Road W., Guelph, Ontario N1G 5C9, Canada
| | - Honghui Bao
- College of Food Science and Technology, Hubei University of Arts and Science, Xiangyang 441053, China.
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31
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Lin Y, Chen H, Cao Y, Zhang Y, Li W, Guo W, Lv X, Rao P, Ni L, Liu P. Auricularia auricula Melanin Protects against Alcoholic Liver Injury and Modulates Intestinal Microbiota Composition in Mice Exposed to Alcohol Intake. Foods 2021; 10:foods10102436. [PMID: 34681485 PMCID: PMC8535349 DOI: 10.3390/foods10102436] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 09/26/2021] [Accepted: 09/28/2021] [Indexed: 12/12/2022] Open
Abstract
The potential effects of Auricularia auricula melanin (AAM) on the intestinal flora and liver metabolome in mice exposed to alcohol intake were investigated for the first time. The results showed that oral administration of AAM significantly reduced the abnormal elevation of serum total triglyceride (TG), cholesterol (TC), low density lipoprotein cholesterol (LDL-C), aspartate aminotransferase (AST) and alanine aminotransferase (ALT), and significantly inhibited hepatic lipid accumulation and steatosis in mice exposed to alcohol intake. Besides, the abnormally high levels of bile acids (BAs) and lactate dehydrogenase (LDH) in the liver of mice with alcohol intake were significantly decreased by AAM intervention, while the hepatic levels of glutathione (GSH) and superoxide dismutase (SOD) were appreciably increased. Compared with the model group, AAM supplementation significantly changed the composition of intestinal flora and up-regulated the levels of Akkermansia, Bifidobacterium, Romboutsia, Muribaculaceae, Lachnospiraceae_NK4A136_group, etc. Furthermore, liver metabolomics demonstrated that AAM had a significant regulatory effect on the composition of liver metabolites in mice with alcohol intake, especially the metabolites involved in phosphatidylinositol signaling system, ascorbate and aldarate metabolism, starch and sucrose metabolism, galactose metabolism, alpha-linolenic acid metabolism, glycolysis/gluconeogenesis, and biosynthesis of unsaturated fatty acids. At the gene level, AAM treatment regulated the mRNA levels of lipid metabolism and inflammatory response related genes in liver, including ACC-1, FASn, CPT-1, CD36, IFN-γ, LDLr and TNF-α. Conclusively, these findings suggest that AAM has potential beneficial effects on alleviating alcohol-induced liver injury and is expected to become a new functional food ingredient.
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Affiliation(s)
- Yichen Lin
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.L.); (Y.C.); (W.G.)
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Hua Chen
- Fujian Province Key Laboratory of Agro-Ecological Processes in Hilly Red Soil, Agricultural Ecology Institute, Fujian Academy of Agriculture Sciences, Fuzhou 350003, China;
| | - Yingjia Cao
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.L.); (Y.C.); (W.G.)
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Yuanhui Zhang
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Wenfeng Li
- Department of Nutrition and Food Safety, School of Public Health, Fujian Medical University, Fuzhou 350122, China;
| | - Weiling Guo
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.L.); (Y.C.); (W.G.)
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Xucong Lv
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
- Correspondence: (X.L.); (P.L.)
| | - Pingfan Rao
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Li Ni
- Institute of Food Science and Technology, College of Biological Science and Technology, Fuzhou University, Fuzhou 350108, China; (Y.Z.); (P.R.); (L.N.)
| | - Penghu Liu
- National Engineering Research Center of JUNCAO Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.L.); (Y.C.); (W.G.)
- Correspondence: (X.L.); (P.L.)
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