Smaïn Chemat

Centre de Recherche sur l'Information Scientifique et Technique

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Farid Chemat

Université d'Avignon et des Pays de Vaucluse

Alexei A. Lapkin

University of Cambridge

Hamid Aït-Amar

University of Sciences and Technology Houari Boumediene

P.V. Bartels

Wageningen University & Research

Ahcène Lagha

University of Blida

Lía N. Gerschenson

Fundación Ciencias Exactas y Naturales

Sergio Ortíz

Centre National de la Recherche Scientifique

B. Y. Meklati

University of Sciences and Technology Houari Boumediene

Nabiha Benalia

University Ferhat Abbas of Setif

Sabrina Boutefnouchet

Centre National de la Recherche Scientifique

Cooperative Institutions

University of Sciences and Technology Houari Boumediene

Centre de Recherche sur l'Information Scientifique et Technique

Centre National de la Recherche Scientifique

Université de Rouen Normandie

Normandie Université

Université Paris Cité

Rede de Química e Tecnologia

University of Cambridge

Agence Nationale de Sécurité Sanitaire de l’Alimentation, de l’Environnement et du Travail

RWTH Aachen University

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Microwave-assisted extraction kinetics of terpenes from caraway seeds

Chemical Engineering and Processing - Process Intensification (2005)

Smaïn Chemat Hamid Aït-Amar Ahcène Lagha D.C. Esveld

Carvone

Terpene

10.1016/j.cep.2005.03.011

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Citations (124)

Biosynthesis of spathulenol and camphor stand as a competitive route to artemisinin production as revealed by a new chemometric convergence approach based on nine locations’ field-grown Artemesia annua L.

Industrial Crops and Products (2019)

Smaïn Chemat Sonia Boudjelal Issam Malki Alexei A. Lapkin

Artemisia annua

Sesquiterpene lactone

Camphor

10.1016/j.indcrop.2019.05.056

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Citations (3)

Artemisia annuaL.の葉のアルテミシニン結晶の高収率と純度に及ぼす支援抽出とその効果超音波の抽出機構【Powered by NICT】

Ultrasonics Sonochemistry (2017)

Smaïn Chemat Aissa Abdallah Boumechhour Abdenour Omar Arous Hamid Aït-Amar

Artemisia

Source

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Optimization of silybin production from Silybum marianum tissue cell cultures using different elicitor solutions

Journal of Food Processing and Preservation (2022)

Ahlem Ikhlef Hamid Aït-Amar Lakhdar Khelifi Smaïn Chemat

Plant cell cultures of Silybum marianum L. are studied under different classes of elicitors including heavy metal ions (Ag+), polysaccharides (yeast extract and chitosan), and plant response signaling compounds (salicylic acid) in order to enhance silybin production. Remarkably, all elicitors enhanced the accumulation of silybin compared to the control experiment, but the highest total silybin content was achieved in cell suspensions elicited with yeast extract at 0.5 μg.ml−1 producing a total silybin yield at 0.15 mg.g−1 cells dry weight after 2 days of elicitation for a total cell dry weight of 1.49 g. The lowest silybin accumulation belongs to chitosan treatment producing maximum silybin content and dry weight of 0.038 mg.g−1 DW and 1.19 g, respectively. These results are promising to establish a proof of concept using yeast extract as a viable elicitor option to produce silybin in tissue culture. Practical applications Optimization of elicitor-induced cell culture production of secondary metabolites is important to develop a proof concept that can be easily scaled-up and stand as an economically viable solution to meet the increasing demand for health and food supplements. In fact, the production of secondary metabolites from tissue cultures permits space and resource optimization, protects endangered endemic plants, and contributes to food/health security and sustainable development.

Silybum marianum

Yeast extract

Dry weight

10.1111/jfpp.16491

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Study of the degradation in aqueous solution of a refractory organic compound: avermectin type used as pesticide in agriculture

Water Science & Technology (2017)

Athir Boukhrissa Fatiha Ferrag-Siagh Lina-Mounia Rouidi Smaïn Chemat Hamid Aït-Amar

We examined the removal of abamectin by the electro-Fenton (EF) process and the feasibility of biological treatment after degradation. The effect of the operating parameters showed that abamectin (Aba) degradation was enhanced with increasing temperature. Response surface analysis of the central composite design led to the following optimal conditions for the abatement of chemical oxygen demand: 45.5 °C, 5 mg L−1, 150 mA, and 0.15 mmol L−1 for the temperature, initial Aba concentration, current intensity, and catalyst concentration, respectively. Under these conditions, 68.01% of the organic matter was removed and 94% of Aba was degraded after 5 h and 20 min of electrolysis, respectively. A biodegradability test, which was performed on a solution electrolyzed at 47 °C, 9 mg L−1, 150 mA, and 0.15 mmol L−1, confirms that the ratio of biological oxygen demand/chemical oxygen demand increased appreciably from 0.0584 to 0.64 after 5 h of electrolysis. This increased ratio is slightly above the limit of biodegradability (0.4). These results show the relevance of the EF process and its effectiveness for abamectin degradation. We conclude that biological treatment can be combined with the EF process for total mineralization.

Biochemical oxygen demand

Degradation

Avermectin

Abamectin

Pesticide degradation

10.2166/wst.2017.310

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Citations (6)

Conventional extraction

Elsevier eBooks (2015)

Juliana M. Prado Renata Vardanega Isabel C.N. Debien Maria Ângela de Almeida Meireles Lía N. Gerschenson

10.1016/b978-0-12-800351-0.00006-7