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Duarte RB, Lima KRD, Assis-Silva ZMD, Ramos DGDS, Monteiro CMDO, Braga ÍA. Acaricidal potential of essential oils on Rhipicephalus linnaei: Alternatives and prospects. Vet Parasitol 2024; 331:110291. [PMID: 39190938 DOI: 10.1016/j.vetpar.2024.110291] [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: 07/04/2024] [Revised: 08/19/2024] [Accepted: 08/20/2024] [Indexed: 08/29/2024]
Abstract
The acaricidal potential of various essential oils (EOs) has been evaluated based on their benefits in tick control. This study aimed to investigate the tick-killing activity of Pogostemon cablin "patchouli," Cymbopogon martinii "palmarosa," and Cymbopogon flexuosus "lemongrass" EOs on Rhipicephalus linnaei. Engorged females were collected from domiciled and non-domiciled dogs from Jataí city, Goiás state, to obtain larvae and nymphs in a controlled environment. Two commercial EOs brands were used in this study in different EOs concentrations (2.5, 5, 10, and 20 mg/mL), and was tested by immersion of larvae and nymphs. In the in vitro evaluation of EOs toxicity against R. linnaei larvae, 100 % mortality was achieved with 10 mg/mL of P. cablin oil, whereas mortality rates greater than 98 % were observed with 20 mg/mL of C. martinii and C. flexuosus. In nymphs, high sensitivity was observed, with 100 % mortality achieved using 5 mg/mL of P. cablin and 20 mg/mL of C. martinii and C. flexuosus. The EO of P. cablin "patchouli" demonstrated in vitro toxicity at a lower concentration than the other oils in the two development stages of R. linnaei, and was considered the most efficient and with verified acaricidal activity. Oils of C. martinii "palmarosa" and C. flexuosus "lemongrass" achieved mortality greater than 95 % in larvae and nymphs only at the highest concentration. Therefore, the acaricidal effects of the tested EOs are promising, especially of patchouli oil, which promoted high mortality at a low concentration (LC90 of 2.21 mg/mL).
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Affiliation(s)
- Raiany Borges Duarte
- Parasitology and Veterinary Clinical Analysis Laboratory from Federal University of Jataí, Câmpus Jatobá - Cidade Universitária, BR 364, km 195, nº 3800, Jataí, GO CEP 75801-615, Brazil.
| | - Kariana Ribeiro de Lima
- Biology, Ecology and Tick Control Laboratory from Federal University of Goiás, R. R-2, 1853-1883 - Chácaras Califórnia, Goiânia - GO, Goiânia, GO CEP 74691-835, Brazil.
| | - Zara Mariana de Assis-Silva
- Parasitology and Veterinary Clinical Analysis Laboratory from Federal University of Jataí, Câmpus Jatobá - Cidade Universitária, BR 364, km 195, nº 3800, Jataí, GO CEP 75801-615, Brazil
| | - Dirceu Guilherme de Souza Ramos
- Parasitology and Veterinary Clinical Analysis Laboratory from Federal University of Jataí, Câmpus Jatobá - Cidade Universitária, BR 364, km 195, nº 3800, Jataí, GO CEP 75801-615, Brazil.
| | - Caio Márcio de Oliveira Monteiro
- Biology, Ecology and Tick Control Laboratory from Federal University of Goiás, R. R-2, 1853-1883 - Chácaras Califórnia, Goiânia - GO, Goiânia, GO CEP 74691-835, Brazil.
| | - Ísis Assis Braga
- Parasitology and Veterinary Clinical Analysis Laboratory from Federal University of Jataí, Câmpus Jatobá - Cidade Universitária, BR 364, km 195, nº 3800, Jataí, GO CEP 75801-615, Brazil.
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Freitas AN, Remonatto D, Miotti Junior RH, do Nascimento JFC, da Silva Moura AC, de Carvalho Santos Ebinuma V, de Paula AV. Adsorption of extracellular lipase in a packed-bed reactor: an alternative immobilization approach. Bioprocess Biosyst Eng 2024:10.1007/s00449-024-03066-5. [PMID: 39102121 DOI: 10.1007/s00449-024-03066-5] [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: 04/02/2024] [Accepted: 07/17/2024] [Indexed: 08/06/2024]
Abstract
In light of the growing demand for novel biocatalysts and enzyme production methods, this study aimed to evaluate the potential of Aspergillus tubingensis for producing lipase under submerged culture investigating the influence of culture time and inducer treatment. Moreover, this study also investigated conditions for the immobilization of A. tubingensis lipase by physical adsorption on styrene-divinylbenzene beads (Diaion HP-20), for these conditions to be applied to an alternative immobilization system with a packed-bed reactor. Furthermore, A. tubingensis lipase and its immobilized derivative were characterized in terms of their optimal ranges of pH and temperature. A. tubingensis was shown to be a good producer of lipase, obviating the need for inducer addition. The enzyme extract had a hydrolytic activity of 23 U mL-1 and achieved better performance in the pH range of 7.5 to 9.0 and in the temperature range of 20 to 50 °C. The proposed immobilization system was effective, yielding an immobilized derivative with enhanced hydrolytic activity (35 U g-1), optimum activity over a broader pH range (5.6 to 8.4), and increased tolerance to high temperatures (40 to 60 ℃). This research represents a first step toward lipase production from A. tubingensis under a submerged culture and the development of an alternative immobilization system with a packed-bed reactor. The proposed system holds promise for saving time and resources in future industrial applications.
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Affiliation(s)
- Amanda Noli Freitas
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, 14800-903, Brazil
| | - Daniela Remonatto
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, 14800-903, Brazil
| | - Rodney Helder Miotti Junior
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, 14800-903, Brazil
| | - João Francisco Cabral do Nascimento
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, 14800-903, Brazil
| | - Adriana Candido da Silva Moura
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, 14800-903, Brazil
| | - Valéria de Carvalho Santos Ebinuma
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, 14800-903, Brazil
| | - Ariela Veloso de Paula
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP, 14800-903, Brazil.
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Venturi V, Presini F, Trapella C, Bortolini O, Giovannini PP, Lerin LA. Microwave-assisted enzymatic synthesis of geraniol esters in solvent-free systems: optimization of the reaction parameters, purification and characterization of the products, and biocatalyst reuse. Mol Divers 2024; 28:1665-1679. [PMID: 37368203 PMCID: PMC11269508 DOI: 10.1007/s11030-023-10682-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/17/2023] [Indexed: 06/28/2023]
Abstract
Various geraniol esters act as insect pheromones and display pharmacological activities, especially as neuroprotective agents. Therefore, the search for synthetic strategies alternative to traditional chemical synthesis could help designing ecofriendly routes for the preparation of such bioactive compounds. Hence, this work aims at the microwave-assisted enzymatic synthesis of geranyl esters in solvent-free systems. The process variables were optimized for the synthesis of geranyl acetoacetate, achieving 85% conversion after 60 min using a 1:5 substrates molar ratio (ester to geraniol), 80 °C and 8.4% of Lipozyme 435 lipase without removal of the co-produced methanol. On the other hand, a 95% conversion was reached after 30 min using 1:6 substrates molar ratio, 70 °C and 7% lipase in the presence of 5Å molecular sieves for the methanol capture. In addition, the lipase showed good reusability, maintaining the same activity for five reaction cycles. Finally, under the above optimized conditions, other geraniol esters were successfully synthetized such as the geranyl butyrate (98%), geranyl hexanoate (99%), geranyl octanoate (98%), and geranyl (R)-3-hydroxybutyrate (56%). These results demonstrate the microwave-assisted lipase-catalyzed transesterification in a solvent-free system as an excellent and sustainable catalytic methodology to produce geraniol esters.
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Affiliation(s)
- Valentina Venturi
- Department of Environment and Prevention Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Francesco Presini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Claudio Trapella
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Olga Bortolini
- Department of Environment and Prevention Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Pier Paolo Giovannini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy
| | - Lindomar Alberto Lerin
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara - UNIFE, Via Luigi Borsari, 46, Ferrara, 44121, Italy.
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Hu J, Zhou M, Zhang Y, Zhang X, Ji X, Zhao M, Lai M. Enzymatic synthesis of novel pyrrole esters and their thermal stability. BMC Chem 2023; 17:123. [PMID: 37742035 PMCID: PMC10518093 DOI: 10.1186/s13065-023-01039-5] [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: 03/13/2023] [Accepted: 09/13/2023] [Indexed: 09/25/2023] Open
Abstract
In the present work a simple enzymatic approach (Novozym 435) for transesterification to synthesize pyrrole esters was reported. To generate the best reaction conditions, which resulted in the optimum yield of 92%, the effects of lipase type, solvent, lipase load, molecular sieves, substrate molar ratio of esters to alcohol, reaction temperature, reaction duration, and speed of agitation were evaluated. The range of alcohols was assessed under optimal circumstances. The spectrum observations conclusively demonstrated that the compounds could be generated with high yield under the circumstances utilized for synthesis. The odor characteristics of the pyrrolyl esters obtained were examined by gas chromatography-mass spectrometry-olfactometry (GC-MS-O). Among them, compounds of benzhydryl 1H-pyrrole-2-carboxylate (3j), butyl 1H-pyrrole-2-carboxylate (3k) and pentyl 1H-pyrrole-2-carboxylate (3l) present sweet and acid aroma. In addition, the thermal degradation process was further studied using the Py-GC/MS (pyrolysis-gas chromatography/mass spectrometry), TG (thermogravimetry), and DSC (differential scanning calorimeter) techniques. The outcomes of the Py-GC/MS, TG, and DSC techniques show that they have excellent thermal stability.
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Affiliation(s)
- Jingyi Hu
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Meng Zhou
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Yujie Zhang
- Technology Center, China Tobacco Hebei Industrial Co., Ltd., Shijiazhuang, 050051, People's Republic of China
| | - Xi Zhang
- Technology Center, China Tobacco Shanxi Industrial Co., Ltd., Xian, 710065, People's Republic of China
| | - Xiaoming Ji
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Mingqin Zhao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China
| | - Miao Lai
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China.
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Remonatto D, Santaella N, Lerin LA, Bassan JC, Cerri MO, de Paula AV. Solvent-Free Enzymatic Synthesis of Dietary Triacylglycerols from Cottonseed Oil in a Fluidized Bed Reactor. Molecules 2023; 28:5384. [PMID: 37513254 PMCID: PMC10384263 DOI: 10.3390/molecules28145384] [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: 06/13/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
The synthesis of structured lipids with nutraceutical applications, such as medium-long-medium (MLM) triacylglycerols, via modification of oils and fats represents a challenge for the food industry. This study aimed to synthesize MLM-type dietary triacylglycerols by enzymatic acidolysis of cottonseed oil and capric acid (C10) catalyzed by Lipozyme RM IM (lipase from Rhizomucor miehei) in a fluidized bed reactor (FBR). After chemical characterization of the feedstock and hydrodynamic characterization of the reactor, a 22 central composite rotatable design was used to optimize capric acid incorporation. The independent variables were cycle number (20-70) and cottonseed oil/capric acid molar ratio (1:2-1:4). The temperature was set at 45 °C. The best conditions, namely a 1:4 oil/acid molar ratio and 80 cycles (17.34 h), provided a degree of incorporation of about 40 mol%, as shown by compositional analysis of the modified oil. Lipozyme RM IM showed good operational stability (kd = 2.72 × 10-4 h-1, t1/2 = 2545.78 h), confirming the good reuse capacity of the enzyme in the acidolysis of cottonseed oil with capric acid. It is concluded that an FBR configuration is a promising alternative for the enzymatic synthesis of MLM triacylglycerols.
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Affiliation(s)
- Daniela Remonatto
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, SP, Brazil
| | - Núbia Santaella
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, SP, Brazil
| | - Lindomar Alberto Lerin
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara (UNIFE), Via Luigi Borsari, 46, 44121 Ferrara, Italy
| | - Juliana Cristina Bassan
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, SP, Brazil
- State Center for Technological Education Paula Souza, Faculty of Technology of Barretos (FATEC), Barretos 14780-060, SP, Brazil
| | - Marcel Otávio Cerri
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, SP, Brazil
| | - Ariela Veloso de Paula
- Department of Bioprocess Engineering and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara 14800-903, SP, Brazil
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Qian S, Gao S, Li J, Liu S, Diao E, Chang W, Liang X, Xie P, Jin C. Effects of combined enzymatic hydrolysis and fed-batch operation on efficient improvement of ferulic acid and p-coumaric acid production from pretreated corn straws. BIORESOURCE TECHNOLOGY 2022; 366:128176. [PMID: 36307030 DOI: 10.1016/j.biortech.2022.128176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
In the present work, the effects of combined enzymatic hydrolysis by cellulase and xylanase (CXEH), fed-batch enzymatic hydrolysis (FBEH) operation and kinetics on production of ferulic acid (FA) and p-coumaric acid (pCA) from pretreated corn straws were investigated. The results showed that CXEH could efficiently increase production of FA and pCA. When performed the FBEH operation by feeding 150 mL enzymatic hydrolysis solution (1.5 % enzyme concentration, 5:4 (v/v) ratio of cellulase to xylanase and 2.0 % substrate loading) to 250 mL batch enzymatic hydrolysis solution at 36 h, the maximum production (2178.58 and 2710.17 mg/L) and production rate (590.95 and 727.89 mg/L.h) of FA and pCA were respectively obtained. Moreover, the disruption of fiber tissues, enhancement of crystallinity and accelerated degradation of hemicelluloses and lignocelluloses caused by CXEH contributed to effectively improving production of FA and pCA in corn straws.
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Affiliation(s)
- Shiquan Qian
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China.
| | - Shuliang Gao
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - Jingwen Li
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - Shanshan Liu
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - Enjie Diao
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - Wenli Chang
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - Xiaona Liang
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - Peng Xie
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - Ci Jin
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety and Nutrition Function Evaluation, Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
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