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Kačániová M, Joanidis P, Lakatošová J, Kunová S, Benešová L, Ikromi K, Akhmedov F, Boboev K, Gulmahmad M, Niyatbekzoda F, Toshkhodjaev N, Bobokalonov F, Kamolov N, Čmiková N. Effect of Essential Oils and Dried Herbs on the Shelf Life of Fresh Goat Lump Cheese. Foods 2024; 13:2016. [PMID: 38998522 PMCID: PMC11241544 DOI: 10.3390/foods13132016] [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: 05/29/2024] [Revised: 06/21/2024] [Accepted: 06/24/2024] [Indexed: 07/14/2024] Open
Abstract
In recent years, the use of natural preservatives in food products has gained significant attention due to their potential health benefits and effectiveness. A standardized microbiological analysis was conducted on Slovak farm-produced lump goat cheese samples to determine the antibacterial activity of dry herbs and essential oils added to vacuum-packed goat cheese. We employed five dried herbs and five essential oils derived from the same plants. The microbiological quality of 145 fresh and vacuum-packed goat cheese samples was assessed. The number of coliform bacteria, total viable count, lactic acid bacteria, and microscopic filamentous fungi were examined in raw cheese samples stored for 12 days at 4 °C. All cheese samples were vacuum-packed (control samples were packed without vacuum). This study evaluated the potential benefits of using essential oils and dried herbs from thyme (Thymus serpyllum L.), black pepper (Piper nigrum L.), clove (Eugenia caryophyllus Thunb.), mint (Mentha × piperita L.), and basil (Ocimum basilicum L.) as preservatives. The essential oils were obtained from Hanus Ltd., Nitra, Slovakia, and were applied at a concentration of 2%. The dried herbs were obtained from Popradský čaj (Poprad, Slovakia) and Mäspoma Ltd. (Zvolen, Slovakia). The results showed that all microorganism groups were significantly reduced in cheese samples following the application of essential oils throughout the entire storage period. During the preservation of cheese samples in polyethylene bags used for vacuum packing food, Lactococcus garvieae, L. lactis, Enterobacter cloacae, and Serratia liquefaciens were the most frequently isolated microbiota. Essential oils and dried herbs demonstrated antimicrobial potential during the storage of vacuum-packed goat cheese.
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Affiliation(s)
- Miroslava Kačániová
- Faculty of Horticulture and Landscape Engineering, Institute of Horticulture, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
- School of Medical and Health Sciences, University of Economics and Human Sciences in Warsaw, Okopowa 59, 01043 Warszawa, Poland
| | - Patrícia Joanidis
- AgroBioTech Research Centre, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Jana Lakatošová
- AgroBioTech Research Centre, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Simona Kunová
- Faculty of Biotechnology and Food Sciences, Institute of Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Lucia Benešová
- AgroBioTech Research Centre, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
| | - Khurshed Ikromi
- Department of Food Production Technology, Technological University of Tajikistan, 63/3, N. Karabaeva Str., Dushanbe 734061, Tajikistan
| | - Farkhod Akhmedov
- Department of Food Production Technology, Technological University of Tajikistan, 63/3, N. Karabaeva Str., Dushanbe 734061, Tajikistan
| | - Khayyol Boboev
- Department of Food Production Technology, Technological University of Tajikistan, 63/3, N. Karabaeva Str., Dushanbe 734061, Tajikistan
| | - Mirzozoda Gulmahmad
- Department of Food Production Technology, Technological University of Tajikistan, 63/3, N. Karabaeva Str., Dushanbe 734061, Tajikistan
| | - Fariza Niyatbekzoda
- Department of Food Production Technology, Technological University of Tajikistan, 63/3, N. Karabaeva Str., Dushanbe 734061, Tajikistan
| | - Nasimjon Toshkhodjaev
- Department of Food Technology, Khujand Polytechnic Institute of Tajik Technical University (KPITTU), 226, I. Somoni Avenue, Khujand 735700, Tajikistan
| | - Farkhod Bobokalonov
- Department of Food Technology, Khujand Polytechnic Institute of Tajik Technical University (KPITTU), 226, I. Somoni Avenue, Khujand 735700, Tajikistan
| | - Nasimdzhon Kamolov
- Department of Food Technology, Khujand Polytechnic Institute of Tajik Technical University (KPITTU), 226, I. Somoni Avenue, Khujand 735700, Tajikistan
| | - Natália Čmiková
- Faculty of Horticulture and Landscape Engineering, Institute of Horticulture, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia
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Luo SH, Hua J, Liu Y, Li SH. The Chemical Ecology of Plant Natural Products. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2024; 124:57-183. [PMID: 39101984 DOI: 10.1007/978-3-031-59567-7_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/06/2024]
Abstract
Plants are excellent chemists with an impressive capability of biosynthesizing a large variety of natural products (also known as secondary or specialized metabolites) to resist various biotic and abiotic stresses. In this chapter, 989 plant natural products and their ecological functions in plant-herbivore, plant-microorganism, and plant-plant interactions are reviewed. These compounds include terpenoids, phenols, alkaloids, and other structural types. Terpenoids usually provide direct or indirect defense functions for plants, while phenolic compounds play important roles in regulating the interactions between plants and other organisms. Alkaloids are frequently toxic to herbivores and microorganisms, and can therefore also provide defense functions. The information presented should provide the basis for in-depth research of these plant natural products and their natural functions, and also for their further development and utilization.
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Affiliation(s)
- Shi-Hong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road 132, Panlong District, Kunming, 650201, Yunnan Province, P. R. China
| | - Juan Hua
- College of Bioscience and Biotechnology, Shenyang Agricultural University, Dongling Road 120, Shenhe District, Shenyang, 110866, Liaoning Province, P. R. China
| | - Yan Liu
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, LiuTai Avenue 1166, Wenjiang District, Chengdu, 611137, Sichuan Province, P. R. China.
| | - Sheng-Hong Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road 132, Panlong District, Kunming, 650201, Yunnan Province, P. R. China.
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Thoma JL, Cantrell CL, Tamang P, Zheljazkov VD. Determining the optimum mixture of three essential oils for potato sprout suppression at room temperature storage. FRONTIERS IN PLANT SCIENCE 2023; 14:1199117. [PMID: 37389299 PMCID: PMC10303126 DOI: 10.3389/fpls.2023.1199117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/23/2023] [Indexed: 07/01/2023]
Abstract
As a staple crop, potatoes (Solanum tuberosum) play an important role in meeting daily caloric needs. To ensure adequate supplies for year-round consumption, potato quality must be maintained throughout lengthy storage periods. Towards this end, potato sprouting during storage must be minimized. Due to changing regulations regarding chemical means of potato sprout suppression, increased focus has turned to alternative products including essential oils (EO) as sprout suppressants in recent years. The complex composition of various EOs promises numerous options for sprout suppression. Furthermore, blends of several EOs may achieve enhanced sprout suppressant properties if synergistic interactions are present. We evaluated Syzygium aromaticum, Artemisia herba-alba, and Laurus nobilis EOs and blends thereof as sprout suppressants in potato cultivar Ranger Russet stored at room temperature and also tested for their antifungal activity against Colletotrichum fragariae, a causal organism of anthracnose disease in strawberries including other vegetables and fruits. A. herba-alba EO was an effective sprout suppressant when used alone and suppressed sprouting over the 90-day storage period. Interactions between A. herba-alba and S. aromaticum affected sprout length whereas interactions between A. herba-alba and L. nobilis EOs affected sprout number. An optimum blend of 50% - 82.31% A. herba-alba, 17.69% - 50% L. nobilis, and 0% - 1.01% S. aromaticum EOs could more effectively minimize tuber sprout length and number than any of the three whole EOs used alone. Among these three EOs, only S. aromaticum EO showed antifungal activity against C. fragariae in bioautography assay. These results exhibit the potential of EOs blends as a novel tactic in potato sprout suppression as well as potential natural product-based fungicides in managing C. fragariae.
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Affiliation(s)
- Jena L. Thoma
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, United States
| | - Charles L. Cantrell
- Natural Products Utilization Research Unit, Agricultural Research Service, United States Department of Agriculture, University, MS, United States
| | - Prabin Tamang
- Natural Products Utilization Research Unit, Agricultural Research Service, United States Department of Agriculture, University, MS, United States
| | - Valtcho D. Zheljazkov
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, United States
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Xing S, Gao Y, Li X, Ren H, Gao Y, Yang H, Liu Y, He S, Huang Q. Antifungal Activity of Volatile Components from Ceratocystis fimbriata and Its Potential Biocontrol Mechanism on Alternaria alternata in Postharvest Cherry Tomato Fruit. Microbiol Spectr 2023; 11:e0271322. [PMID: 36625661 PMCID: PMC9927153 DOI: 10.1128/spectrum.02713-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Infection by fungal pathogens is the main factor leading to postharvest rot and quality deterioration of fruit and vegetables. Rotting caused by Alternaria alternata is a concerning disease for numerous crops in both production and postharvest stages, especially tomato black spots. In this study, the double Petri dish assay showed that the VOCs of Ceratocystis fimbriata WJSK-1 and Mby inhibited the mycelial growth of fungal pathogen A. alternata, with a percentage inhibition of 52.2% and 42.9%. Then, HS-SPME-GC-MS technology was used to analyze the volatiles produced by two strains of C. fimbriata (WJSK-1, Mby), a total of 42 volatile single components were obtained, the main volatiles compounds identified include nine esters, 10 ketones, five alcohols, four aldehydes, three aromatic hydrocarbons, three heterocycles, four alkenes, three alkanes, and one acid. After that, the antifungal activity of a single volatile component was evaluated both in vitro and in vivo, four single components with antifungal effects were screened out, namely, benzaldehyde, nonanal, 2-Phenylethanol and isoamyl acetate, with IC50 values show the smallest values for benzaldehyde and nonanal at 0.11 μL mL-1, 0.04 μL mL-1. A. alternata exposed to VOCs had abnormal morphology for hyphae, delayed sporulation, and inhibited spore germination. In vivo experiment shows that the four volatile components can effectively suppress disease incidence on fungal-inoculated fruit; the two aldehydes (benzaldehyde and nonanal) have more prominent effect on delaying fruit onset of disease. The results showed that VOCs produced by C. fimbriata have potential as a fumigant for controlling black rot in cherry tomatoes. IMPORTANCE In this research, the volatile organic compounds (VOCs) produced based on C. fimbriata exhibited strong antifungal activity against the fungal pathogen A. alternata. Our aim is to explore their bacteriostatic components. HS-SPME-GC-MS technology was used to analyze the volatiles produced by the C. fimbriata strain (WJSK-1, Mby). Postharvest cherry tomato fruit black rot caused by A. alternata was treated both in vitro and in vivo, with pure individual components produced by C. fimbriata. The benzaldehyde, nonanal, 2-Phenylethanol, and isoamyl acetate from C. fimbriata can effectively inhibit growth of A. alternata, and delay disease. It has the potential to be developed as a new type of fumigant, a potential replacement for fungicides in the future.
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Affiliation(s)
- Shijun Xing
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
| | - Yating Gao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
| | - Xue Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
| | - Huan Ren
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
| | - Yang Gao
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
| | - Hui Yang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
| | - Yanmei Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
| | - Shuqi He
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
| | - Qiong Huang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People's Republic of China
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Role of Phenylpropanoids and Flavonoids in Plant Resistance to Pests and Diseases. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238371. [PMID: 36500459 PMCID: PMC9735708 DOI: 10.3390/molecules27238371] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/22/2022] [Accepted: 11/27/2022] [Indexed: 12/02/2022]
Abstract
Phenylpropanoids and flavonoids are specialized metabolites frequently reported as involved in plant defense to biotic or abiotic stresses. Their biosynthetic accumulation may be constitutive and/or induced in response to external stimuli. They may participate in plant signaling driving plant defense responses, act as a physical or chemical barrier to prevent invasion, or as a direct toxic weapon against microbial or insect targets. Their protective action is described as the combinatory effect of their localization during the host's interaction with aggressors, their sustained availability, and the predominance of specific compounds or synergy with others. Their biosynthesis and regulation are partly deciphered; however, a lot of gaps in knowledge remain to be filled. Their mode of action on microorganisms and insects probably arises from an interference with important cellular machineries and structures, yet this is not fully understood for all type of pests and pathogens. We present here an overview of advances in the state of the art for both phenylpropanoids and flavonoids with the objective of paving the way for plant breeders looking for natural sources of resistance to improve plant varieties. Examples are provided for all types of microorganisms and insects that are targeted in crop protection. For this purpose, fields of phytopathology, phytochemistry, and human health were explored.
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Toxicogenic Fungi, Aflatoxins, and Antimicrobial Activities Associated with Some Spices and Herbs from Three Selected Markets in Ho Municipality, Ghana. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2022; 2022:7195890. [PMID: 35784191 PMCID: PMC9249519 DOI: 10.1155/2022/7195890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 11/18/2022]
Abstract
Spices and herbs are widely used food ingredients that enhance most organoleptic features of prepared foods. They are also used for medicinal and preservative purposes. Spices and herbs are potential carriers of bacteria, yeasts, and molds due to the nature of cultivation, harvest methods, storage conditions, packaging procedures, distribution, sale, and general handling. Although some fungi have been identified to be associated with most spices and herbs elsewhere in the world, little has been done on the presence of fungi in spices and herbs in Ghana. This study sought to identify the toxicogenic fungal profiles, mycotoxins (aflatoxins) present in some herbs, bay leaf (Laurus nobilis) and garden egg leaves (“gboma”) (Solanum macrocarpon), and spices, ginger (Zingiber officinale) and “dawadawa”(Parkia biglobosa), as well as to investigate the antimicrobial properties of the selected herbs and spices. The decimal reduction technique was used to plate onto Dichloran Rose Bengal Chloramphenicol (DRBC) agar media plates for fungal growth. Aflatoxin detection was carried out with high-performance liquid chromatographer connected to a fluorescence detector (HPLC-FLD). Antimicrobial properties were carried out using the agar diffusion method on solidified, freshly prepared Mueller-Hinton agar. A total of 12 species belonging to 7 genera, Aspergillus (niger, flavus, fumigatus, and ochraceus), Fusarium (oxysporum, verticillioides), Mucor (racemosus), Penicillium (digitatum, expansum), Rhizopus (stolonifer), Rhodotorula sp., and Trichoderma harzianum, were identified as fungal contaminants. Fusarium oxysporum was the most predominant species identified. Fresh ginger recorded the greatest number of colony-forming units (3.71 log10 CFU/g) with bay leaves recording the least number of colony counts (2.36 log10 CFU/g). Mycotoxin concentration detected in gboma was
and in dawadawa was
; however, mycotoxins were not detected in bay leaf and ginger. Ginger exhibited antibacterial activity against all bacteria ranging from
to
zones of inhibition. Ginger, bay leaf, and gboma extracts displayed fair antimicrobial activity against the bacteria investigated. On the other hand, dawadawa generally produced the least resistance against the five bacterial species but exhibited the highest zone of inhibition. All samples were slightly acidic with pH readings ranging from 5.81 to 6.76.
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Paparella A, Nawade B, Shaltiel-Harpaz L, Ibdah M. A Review of the Botany, Volatile Composition, Biochemical and Molecular Aspects, and Traditional Uses of Laurus nobilis. PLANTS 2022; 11:plants11091209. [PMID: 35567209 PMCID: PMC9100900 DOI: 10.3390/plants11091209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 04/24/2022] [Accepted: 04/27/2022] [Indexed: 11/26/2022]
Abstract
Laurus nobilis L. is an aromatic medicinal plant widely cultivated in many world regions. L. nobilis has been increasingly acknowledged over the years as it provides an essential contribution to the food and pharmaceutical industries and cultural integrity. The commercial value of this species derives from its essential oil, whose application might be extended to various industries. The chemical composition of the essential oil depends on environmental conditions, location, and season during which the plants are collected, drying methods, extraction, and analytical conditions. The characterization and chemotyping of L. nobilis essential oil are extremely important because the changes in composition can affect biological activities. Several aspects of the plant’s secondary metabolism, particularly volatile production in L. nobilis, are still unknown. However, understanding the molecular basis of flavor and aroma production is not an easy task to accomplish. Nevertheless, the time-limited efforts for conservation and the unavailability of knowledge about genetic diversity are probably the major reasons for the lack of breeding programs in L. nobilis. The present review gathers the scientific evidence on the research carried out on Laurus nobilis L., considering its cultivation, volatile composition, biochemical and molecular aspects, and antioxidant and antimicrobial activities.
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Affiliation(s)
- Antonello Paparella
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Balzarini, 1, 64100 Teramo, Italy;
| | - Bhagwat Nawade
- Newe Yaar Research Center, Agricultural Research Organization, Ramat Yishay 30095, Israel;
| | - Liora Shaltiel-Harpaz
- Migal Galilee Research Institute, Kiryat Shmona 11016, Israel;
- Environmental Sciences Department, Tel Hai College, Upper Galilee 12210, Israel
| | - Mwafaq Ibdah
- Newe Yaar Research Center, Agricultural Research Organization, Ramat Yishay 30095, Israel;
- Correspondence: ; Tel.: +972-4-953-9537; Fax: +972-4-983-6936
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Moumni M, Allagui MB, Mezrioui K, Ben Amara H, Romanazzi G. Evaluation of Seven Essential Oils as Seed Treatments against Seedborne Fungal Pathogens of Cucurbita maxima. Molecules 2021; 26:molecules26082354. [PMID: 33919567 PMCID: PMC8073776 DOI: 10.3390/molecules26082354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/08/2021] [Accepted: 04/14/2021] [Indexed: 12/03/2022] Open
Abstract
Essential oils are gaining interest as environmentally friendly alternatives to synthetic fungicides for management of seedborne pathogens. Here, seven essential oils were initially tested in vivo for disinfection of squash seeds (Cucurbita maxima) naturally contaminated by Stagonosporopsis cucurbitacearum, Alternaria alternata, Fusarium fujikuro, Fusarium solani, Paramyrothecium roridum, Albifimbria verrucaria, Curvularia spicifera, and Rhizopus stolonifer. The seeds were treated with essential oils from Cymbopogon citratus, Lavandula dentata, Lavandula hybrida, Melaleuca alternifolia, Laurus nobilis, and Origanum majorana (#1 and #2). Incidence of S. cucurbitacearum was reduced, representing a range between 67.0% in L. nobilis to 84.4% in O. majorana #2. Treatments at 0.5 mg/mL essential oils did not affect seed germination, although radicles were shorter than controls, except with C. citratus and O. majorana #1 essential oils. Four days after seeding, seedling emergence was 20%, 30%, and 10% for control seeds and seeds treated with C. citratus essential oil (0.5 mg/mL) and fungicides (25 g/L difenoconazole plus 25 g/L fludioxonil). S. cucurbitacearum incidence was reduced by ~40% for plantlets from seeds treated with C. citratus essential oil. These data show the effectiveness of this essential oil to control the transmission of S. cucurbitacearum from seeds to plantlets, and thus define their potential use for seed decontamination in integrated pest management and organic agriculture.
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Affiliation(s)
- Marwa Moumni
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (M.M.); (K.M.)
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia, University of Carthage, 2080 Ariana, Tunisia; (M.B.A.); (H.B.A.)
| | - Mohamed Bechir Allagui
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia, University of Carthage, 2080 Ariana, Tunisia; (M.B.A.); (H.B.A.)
| | - Kaies Mezrioui
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (M.M.); (K.M.)
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia, University of Carthage, 2080 Ariana, Tunisia; (M.B.A.); (H.B.A.)
| | - Hajer Ben Amara
- Laboratory of Plant Protection, National Institute for Agronomic Research of Tunisia, University of Carthage, 2080 Ariana, Tunisia; (M.B.A.); (H.B.A.)
| | - Gianfranco Romanazzi
- Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy; (M.M.); (K.M.)
- Correspondence: ; Tel.: +39-071-2204336
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Akroum S, Rouibah M. [Protection by some plant methanol extracts of cherry tomatoes (Solanum lycopersicum var. Cerasiforme) from fungic infection by Alternaria alternata]. Biol Aujourdhui 2020; 214:55-61. [PMID: 32773030 DOI: 10.1051/jbio/2020001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Indexed: 01/10/2023]
Abstract
Cherry tomato is very susceptible to fungal infections that can cause considerable damage in crops and during storage. Alternaria infection is one of the most common and dangerous alterations for this fruit. They are caused by Alternaria alternata or some other species belonging to the same genus. In this work, we tested the antifungal activity of methanol extracts from five plants harvested in the region of Jijel (Algeria) on A. alternata. The activity was first tested in vitro and then on greenhouse cherry tomato plants: extracts were applied to healthy plants before infection in order to test their preventive action, and after infection to determine whether they are able to knock out Alternaria. Results showed that Rosmarinus officinalis and Lavandula angustifolia extracts were the most active in vitro on A. alternata. Microscopic observations of the mold indicated that these extracts inhibited the dictyospores production. The antifungal activity tested on the plants grown in greenhouse revealed that R. officinalis extract still was the most active. Extracts of L. angustifolia and Punica granatum did not protect the plants from Alternaria infection, but provided a total cure at the end of the treatment. Extracts from Quercus suber and Eucalyptus globulus were the least active. They did not bestow any protection nor complete healing of the plants. Dictyospores counting on fruits at the end of the treatment confirmed the results obtained for the greenhouse crops.
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Affiliation(s)
- Souâd Akroum
- Laboratoire de Biologie Moléculaire et Cellulaire, Faculté des Sciences de la Nature et de la Vie, Université Mohamed Seddik Ben Yahia, BP 98 Ouled Aissa, Jijel 18000, Algérie
| | - Moad Rouibah
- Laboratoire de Biotechnologie, Environnement et Santé, Faculté des Sciences de la Nature et de la Vie, Université Mohamed Seddik Ben Yahia, BP 98 Ouled Aissa, Jijel 18000, Algérie
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Liu X, Gao Y, Yang H, Li L, Jiang Y, Li Y, Zheng J. Pichia kudriavzevii retards fungal decay by influencing the fungal community succession during cherry tomato fruit storage. Food Microbiol 2020; 88:103404. [DOI: 10.1016/j.fm.2019.103404] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 12/12/2019] [Accepted: 12/12/2019] [Indexed: 02/06/2023]
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Raveau R, Fontaine J, Lounès-Hadj Sahraoui A. Essential Oils as Potential Alternative Biocontrol Products against Plant Pathogens and Weeds: A Review. Foods 2020; 9:E365. [PMID: 32245234 PMCID: PMC7143296 DOI: 10.3390/foods9030365] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/14/2020] [Accepted: 03/17/2020] [Indexed: 12/22/2022] Open
Abstract
Naturally produced by aromatic plants, essential oils (EO) contain a wide range of volatile molecules, including mostly secondary metabolites, which possess several biological activities. Essential oils properties such as antioxidant, antimicrobial and anti-inflammatory activities are known for a long time and hence widely used in traditional medicines, cosmetics and food industries. However, despite their effects against many phytopathogenic fungi, oomycetes and bacteria as well as weeds, their use in agriculture remains surprisingly scarce. The purpose of the present review is to gather and discuss up-to-date biological activities of EO against weeds, plant pathogenic fungi, oomycetes and bacteria, reported in the scientific literature. Innovative methods, potentially valuable to improve the efficiency and reliability of EO, have been investigated. In particular, their use towards a more sustainable agriculture has been discussed, aiming at encouraging the use of alternative products to substitute synthetic pesticides to control weeds and plant diseases, without significantly affecting crop yields. An overview of the market and the recent advances on the regulation of these products as well as future challenges to promote their development and wider use in disease management programs is described. Because of several recent reviews on EO insecticidal properties, this topic is not covered in the present review.
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Affiliation(s)
| | | | - Anissa Lounès-Hadj Sahraoui
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, UR 4492), Université du Littoral Côte d’Opale, SFR Condorcet FR CNRS 3417, 50 rue Ferdinand Buisson, 62228 Calais cedex, France; (R.R.); (J.F.)
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12
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Confortin TC, Todero I, Soares JF, Luft L, Brun T, Rabuske JE, Nogueira CU, Mazutti MA, Zabot GL, Tres MV. Extracts from Lupinus albescens: antioxidant power and antifungal activity in vitro against phytopathogenic fungi. ENVIRONMENTAL TECHNOLOGY 2019; 40:1668-1675. [PMID: 29336227 DOI: 10.1080/09593330.2018.1427800] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 01/08/2018] [Indexed: 06/07/2023]
Abstract
Fungi are considered the most damaging microorganisms in agriculture. The indiscriminate use of chemical treatments in agricultural products causes the development of pest resistance and affects human health. An alternative to synthetic fungicides is the use of natural products such as plant extracts for the management of fungal diseases in plants. Extracts from different parts of Lupinus albescens (roots, stalks, leaves, and flowers) were obtained by extraction using supercritical carbon dioxide (CO2) or compressed liquefied petroleum gas (LPG). Thereafter, the antioxidant activity of each extract was measured, and the antifungal activity in vitro of extracts was evaluated against Fusarium oxysporum and Fusarium verticillioides. For a concentration of 5000 mg/L, the half maximal inhibitory concentration (IC50) ranged from 29.25 μg/mL to 192.96 μg/mL. Antifungal tests showed that all matrices presented inhibitory effect against both fungi tested. The extracts obtained from roots by CO2 and LPG presented 70.1% and 65.1% inhibition against F. oxysporum, and 67.8% and 61.2% inhibition against F. verticillioides, respectively. These results suggest that the extracts obtained from L. albescens by extractions using supercritical CO2 and compressed LPG might be a potential source of antioxidants and natural fungicides.
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Affiliation(s)
- Tássia C Confortin
- a Department of Agricultural Engineering , Federal University of Santa Maria , Santa Maria , Brazil
| | - Izelmar Todero
- a Department of Agricultural Engineering , Federal University of Santa Maria , Santa Maria , Brazil
| | - Juliana F Soares
- a Department of Agricultural Engineering , Federal University of Santa Maria , Santa Maria , Brazil
| | - Luciana Luft
- b Department of Chemical Engineering , Federal University of Santa Maria , Santa Maria , Brazil
| | - Thiarles Brun
- a Department of Agricultural Engineering , Federal University of Santa Maria , Santa Maria , Brazil
| | - Jéssica E Rabuske
- c Department of Phytosanitary Defense , Federal University of Santa Maria , Santa Maria , Brazil
| | - Cicero U Nogueira
- a Department of Agricultural Engineering , Federal University of Santa Maria , Santa Maria , Brazil
| | - Marcio A Mazutti
- a Department of Agricultural Engineering , Federal University of Santa Maria , Santa Maria , Brazil
| | - Giovani L Zabot
- d Laboratory of Agroindustrial Processes Engineering (LAPE) , Federal University of Santa Maria , Cachoeira do Sul , Brazil
| | - Marcus V Tres
- d Laboratory of Agroindustrial Processes Engineering (LAPE) , Federal University of Santa Maria , Cachoeira do Sul , Brazil
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Friedman M. Chemistry, Antimicrobial Mechanisms, and Antibiotic Activities of Cinnamaldehyde against Pathogenic Bacteria in Animal Feeds and Human Foods. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10406-10423. [PMID: 29155570 DOI: 10.1021/acs.jafc.7b04344] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cinnamaldehyde is a major constituent of cinnamon essential oils produced by aromatic cinnamon plants. This compound has been reported to exhibit antimicrobial properties in vitro in laboratory media and in animal feeds and human foods contaminated with disease-causing bacteria including Bacillus cereus, Campylobacter jejuni, Clostridium perfringens, Escherichia coli, Listeria monocytogenes, and Salmonella enterica. This integrated review surveys and interprets our current knowledge of the chemistry, analysis, safety, mechanism of action, and antibiotic activities of cinnamaldehyde in food animal (cattle, lambs, calves, pigs, poultry) diets and in widely consumed liquid (apple, carrot, tomato, and watermelon juices, milk) and solid foods. Solid foods include various fruits (bayberries, blueberries, raspberries, and strawberries), vegetables (carrots, celery, lettuce, spinach, cucumbers, and tomatoes), meats (beef, ham, pork, and frankfurters), poultry (chickens and turkeys), seafood (oysters and shrimp), bread, cheese, eggs, infant formula, and peanut paste. The described findings are not only of fundamental interest but also have practical implications for food safety, nutrition, and animal and human health. The collated information and suggested research needs will hopefully facilitate and guide further studies needed to optimize the use of cinnamaldehyde alone and in combination with other natural antimicrobials and medicinal antibiotics to help prevent and treat food animal and human diseases.
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Affiliation(s)
- Mendel Friedman
- Healthy Processed Foods Research, Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture , Albany, California 94710, United States
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Alejo-Armijo A, Altarejos J, Salido S. Phytochemicals and Biological Activities of Laurel Tree (Laurus nobilis). Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200519] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022] Open
Abstract
This review summarizes the chemical composition reported up to date on Laurus nobilis L. (Lauraceae), an evergreen shrub or tree cultivated for its aromatic leaves and ornamental interest. It has been focused on non-volatile phytochemicals such as sesquiterpene lactones, flavonoids and proanthocyanidins, among others. Moreover, biological activities of laurel extracts and pure compounds have also been reviewed.
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Affiliation(s)
- Alfonso Alejo-Armijo
- Departamento de Química Inorgánica y Orgánica, Universidad de Jaén, Campus ceiA3, 23071 Jaén, Spain
| | - Joaquín Altarejos
- Departamento de Química Inorgánica y Orgánica, Universidad de Jaén, Campus ceiA3, 23071 Jaén, Spain
| | - Sofía Salido
- Departamento de Química Inorgánica y Orgánica, Universidad de Jaén, Campus ceiA3, 23071 Jaén, Spain
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Peixoto LR, Rosalen PL, Ferreira GLS, Freires IA, de Carvalho FG, Castellano LR, de Castro RD. Antifungal activity, mode of action and anti-biofilm effects of Laurus nobilis Linnaeus essential oil against Candida spp. Arch Oral Biol 2016; 73:179-185. [PMID: 27771586 DOI: 10.1016/j.archoralbio.2016.10.013] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 08/06/2016] [Accepted: 10/14/2016] [Indexed: 11/24/2022]
Abstract
OBJECTIVE The present study demonstrated the antifungal potential of the chemically characterized essential oil (EO) of Laurus nobilis L. (bay laurel) against Candida spp. biofilm adhesion and formation, and further established its mode of action on C. albicans. METHODS L. nobilis EO was obtained and tested for its minimum inhibitory and fungicidal concentrations (MIC/MFC) against Candida spp., as well as for interaction with cell wall biosynthesis and membrane ionic permeability. Then we evaluated its effects on the adhesion, formation, and reduction of 48hC. albicans biofilms. The EO phytochemical profile was determined by gas chromatography coupled to mass spectrometry (GC/MS). RESULTS The MIC and MFC values of the EO ranged from (250 to 500) μg/mL. The MIC values increased in the presence of sorbitol (osmotic protector) and ergosterol, which indicates that the EO may affect cell wall biosynthesis and membrane ionic permeability, respectively. At 2 MIC the EO disrupted initial adhesion of C. albicans biofilms (p<0.05) and affected biofilm formation with no difference compared to nystatin (p>0.05). When applied for 1min, every 8h, for 24h and 48h, the EO reduced the amount of C. albicans mature biofilm with no difference in relation to nystatin (p>0.05). The phytochemical analysis identified isoeugenol as the major compound (53.49%) in the sample. CONCLUSIONS L. nobilis EO has antifungal activity probably due to monoterpenes and sesquiterpenes in its composition. This EO may affect cell wall biosynthesis and membrane permeability, and showed deleterious effects against C. albicans biofilms.
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Affiliation(s)
- Larissa Rangel Peixoto
- Graduate Program in Dentistry, Federal University of Paraíba (UFPB), João Pessoa, 58051-900, Paraíba, Brazil
| | - Pedro Luiz Rosalen
- Graduate Program in Dentistry, Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, 13414-903, SP, Brazil
| | | | - Irlan Almeida Freires
- Graduate Program in Dentistry, Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, 13414-903, SP, Brazil
| | | | - Lúcio Roberto Castellano
- Graduate Program in Dentistry, Federal University of Paraíba (UFPB), João Pessoa, 58051-900, Paraíba, Brazil; Human Immunology Research and Education Group (GEPIH), Technical School of Health (Escola Técnica de Saúde, Universidade Federal da Paraíba) - UFPB, João Pessoa, 58051-900, PB, Brazil
| | - Ricardo Dias de Castro
- Graduate Program in Dentistry, Federal University of Paraíba (UFPB), João Pessoa, 58051-900, Paraíba, Brazil.
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Gottardi D, Bukvicki D, Prasad S, Tyagi AK. Beneficial Effects of Spices in Food Preservation and Safety. Front Microbiol 2016; 7:1394. [PMID: 27708620 PMCID: PMC5030248 DOI: 10.3389/fmicb.2016.01394] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 08/23/2016] [Indexed: 01/04/2023] Open
Abstract
Spices have been used since ancient times. Although they have been employed mainly as flavoring and coloring agents, their role in food safety and preservation have also been studied in vitro and in vivo. Spices have exhibited numerous health benefits in preventing and treating a wide variety of diseases such as cancer, aging, metabolic, neurological, cardiovascular, and inflammatory diseases. The present review aims to provide a comprehensive summary of the most relevant and recent findings on spices and their active compounds in terms of targets and mode of action; in particular, their potential use in food preservation and enhancement of shelf life as a natural bioingredient.
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Affiliation(s)
- Davide Gottardi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of BolognaCesena, Italy
| | - Danka Bukvicki
- Faculty of Biology, Institute of Botany and Botanical Garden “Jevremovac”, University of BelgradeBelgrade, Serbia
| | - Sahdeo Prasad
- Division of Cancer Medicine, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer CenterHouston, TX, USA
| | - Amit K. Tyagi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of BolognaCesena, Italy
- Division of Cancer Medicine, Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer CenterHouston, TX, USA
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He S, Ren X, Lu Y, Zhang Y, Wang Y, Sun L. Microemulsification of clove essential oil improves its in vitro and in vivo control of Penicillium digitatum. Food Control 2016. [DOI: 10.1016/j.foodcont.2016.01.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Xu S, Ni Z, Ma L, Zheng X. Control ofAlternariaRot of Cherry Tomatoes by Food-GradeLaurus NobilisEssential Oil Microemulsion. J Food Saf 2016. [DOI: 10.1111/jfs.12286] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shixiang Xu
- Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Fuli Institute for Food Science, College of Biosystems Engineering and Food Science, Zhejiang University; Hangzhou 310058 China
| | - Zhendan Ni
- Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Fuli Institute for Food Science, College of Biosystems Engineering and Food Science, Zhejiang University; Hangzhou 310058 China
| | - Luyao Ma
- Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Fuli Institute for Food Science, College of Biosystems Engineering and Food Science, Zhejiang University; Hangzhou 310058 China
| | - Xiaodong Zheng
- Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Center for Food Technology and Equipment, Fuli Institute for Food Science, College of Biosystems Engineering and Food Science, Zhejiang University; Hangzhou 310058 China
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Pilar Santamarina M, Roselló J, Giménez S, Amparo Blázquez M. Commercial Laurus nobilis L. and Syzygium aromaticum L. Merr. & Perry essential oils against post-harvest phytopathogenic fungi on rice. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2015.08.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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20
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Bernardos A, Marina T, Žáček P, Pérez-Esteve É, Martínez-Mañez R, Lhotka M, Kouřimská L, Pulkrábek J, Klouček P. Antifungal effect of essential oil components against Aspergillus niger when loaded into silica mesoporous supports. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2015; 95:2824-31. [PMID: 25428206 DOI: 10.1002/jsfa.7022] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 11/03/2014] [Accepted: 11/21/2014] [Indexed: 05/14/2023]
Abstract
BACKGROUND Essential oil components (EOCs) are known for their antifungal properties; however, their high volatility limits their application as antimicrobial agents. Strategies used for controlling the volatility of EOCs include encapsulation or loading into porous materials. This study evaluated the in vitro antifungal activity of selected EOCs (carvacrol, cinnamaldehyde, eugenol and thymol) against the fungus Aspergillus niger when loaded into MCM-41 and β-cyclodextrin (β-CD). RESULTS Carvacrol and thymol in Mobil Composition of Matter No. 41 (MCM-41) displayed remarkable enhanced antifungal properties in comparison to the pure or β-CD-encapsulated EOCs. In fact, carvacrol and thymol were able to maintain antifungal activity and inhibit fungal growth for 30 days, suggesting better applicability of these EOCs as natural preservatives. CONCLUSIONS The sustained antifungal effect of EOCs encapsulated into silica mesoporous supports was described.
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Affiliation(s)
- Andrea Bernardos
- Department of Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6-Suchdol 165 21, Czech Republic
| | - Teresa Marina
- Department of Quality of Agricultural Products, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6-Suchdol 165 21, Czech Republic
| | - Petr Žáček
- Research Team of Infochemicals, Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo nám. 2, 16610, Prague 6, Czech Republic
| | - Édgar Pérez-Esteve
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, E-46022, Valencia, Spain
- Grupo de Investigación e Innovación Alimentaria (CUINA), Universitat Politècnica de València, Camino de Vera s/n, E-46022, Valencia, Spain
| | - Ramón Martínez-Mañez
- Centro de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Unidad Mixta Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, E-46022, Valencia, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Monforte de Lemos 3-5, Pabellón 11, 28029, Madrid, Spain
| | - Miloslav Lhotka
- Department of Inorganic Technology, Faculty of Chemical Technology, Institute of Chemical Technology, Technická 5, 16628, Prague 6, Czech Republic
| | - Lenka Kouřimská
- Department of Quality of Agricultural Products, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6-Suchdol 165 21, Czech Republic
| | - Josef Pulkrábek
- Department of Crop Production, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6-Suchdol 165 21, Czech Republic
| | - Pavel Klouček
- Department of Quality of Agricultural Products, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6-Suchdol 165 21, Czech Republic
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Yan F, Xu S, Guo J, Chen Q, Meng Q, Zheng X. Biocontrol of post-harvest Alternaria alternata decay of cherry tomatoes with rhamnolipids and possible mechanisms of action. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2015; 95:1469-74. [PMID: 25065672 DOI: 10.1002/jsfa.6845] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 07/21/2014] [Accepted: 07/23/2014] [Indexed: 05/21/2023]
Abstract
BACKGROUND Rhamnolipids were reported to have evident antifungal activity. The efficacy of rhamnolipids against Alternaria alternata and their possible mechanisms involved were investigated. RESULT The decay incidences of A. alternata of cherry tomatoes (Lycopersicon esculentum) treated by rhamnolipids were significantly reduced. The in vitro assays showed that rhamnolipids inhibited fungal growth on solid medium and prevented spore germination and mycelium growth in liquid medium. In addition, the combination of rhamnolipids and essential oil had a synergistic effect leading to the decrease of fungicidal concentrations of laurel oil. Scanning electron microscopy and transmission electron microscopy observations of the pathogen revealed significant morphological and cell structural alterations in the hyphae. Compared to the control, the content of nucleic acid in supernatant of the suspension of A. alternata increased, while the content of DNA and protein of mycelium decreased, which was in agreement with electrolyte leakage experiments. CONCLUSION Rhamnolipids could be an alternative to chemicals for controlling post-harvest phytopathogenic fungi on fruits and vegetables.
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Affiliation(s)
- Fujie Yan
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, 310058, People's Republic of China; Fuli Institute of Food Science, Zhejiang University, Hangzhou, 310058, People's Republic of China; Zhejiang Key laboratory for agro-food processing, Zhejiang University, Hangzhou, 310058, People's Republic of China
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Dimić G, Kocić-Tanackov S, Mojović L, Pejin J. Antifungal Activity of Lemon Essential Oil, Coriander and Cinnamon Extracts on Foodborne Molds in Direct Contact and the Vapor Phase. J FOOD PROCESS PRES 2014. [DOI: 10.1111/jfpp.12410] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gordana Dimić
- Faculty of Technology; University of Novi Sad; Bulevar cara Lazara 1 Novi Sad 21000 Serbia
| | - Sunčica Kocić-Tanackov
- Faculty of Technology; University of Novi Sad; Bulevar cara Lazara 1 Novi Sad 21000 Serbia
| | - Ljiljana Mojović
- Faculty of Technology and Metallurgy; University of Belgrade; Beograd Serbia
| | - Jelena Pejin
- Faculty of Technology; University of Novi Sad; Bulevar cara Lazara 1 Novi Sad 21000 Serbia
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