Chemical characterization and antioxidant compounds of flower parts of Moroccan crocus sativus L.

Jadouali, Si Mohamed; Atifi, Hajar; Mamouni, Rachid; Majourhat, Khalid; Bouzoubaâ, Zakia; Laknifli, Abdellatif; Faouzi, Abdellah

doi:10.1016/j.jssas.2018.03.007

Cited by 31 publications

(28 citation statements)

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“…The content of free amino acids for C. sativus extracts decreases at leaves > corms > flowers> stigmas. The results show that the dry aqueous extract of Crocus leaves has the highest concentration of certain free amino acids, which possibly explains [48] the presence of a pronounced antioxidant effect in leaves [17,21,22]. The predominant amino acids Crocus leaves extract were of the hydrophobic amino acids group (alanine (2.71 mg/g), valine (3.02 mg/g), leucine (2.40 mg/g), isoleucine (2.32 mg/g), proline (4.68 mg/g)), which, according to the authors of [49], can inhibit free radicals by proton donation [50] and exhibited a high antioxidant activity in plant extracts.…”

Section: Discussionmentioning

confidence: 88%

“…At the same time, some Iridaceae plants are also known to be widely used as food, condiments or as medicinal plants [10][11][12]. Thus a high pharmacoligical potential was discovered for extracts and active constituents of plants from genes Crocus, Iris, Gladiolus and Juno [13][14][15][16][17]. phytoestrogenic, antidiabetic, hepatoprotective,, antioxidant [13,14,17,18], antimicrobial [16,18] and anticancer [19,20] activities are described for some plants of these genes.…”

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confidence: 99%

“…Thus a high pharmacoligical potential was discovered for extracts and active constituents of plants from genes Crocus, Iris, Gladiolus and Juno [13][14][15][16][17]. phytoestrogenic, antidiabetic, hepatoprotective,, antioxidant [13,14,17,18], antimicrobial [16,18] and anticancer [19,20] activities are described for some plants of these genes. C. sativus stigma [21], petal, stamen, and flower [22] extracts show good antioxidant activity in vitro antioxidant models due to the presence of carotenoids crocins and phenolic compounds (derivatives of kempferol and quercetin).…”

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confidence: 99%

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Comparative Investigation of Amino Acids Content in the Dry Extracts of Juno bucharica, Gladiolus Hybrid Zefir, Iris Hungarica, Iris Variegata and Crocus Sativus Raw Materials of Ukrainian Flora

et al. 2020

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The aim of this research was the comparative study of the amino acids content in the dry extracts of Iridaceae plants of Ukrainian flora: Juno bucharica leaves and corms, Gladiolus hybrid Zefir leaves, Iris hungarica and Iris variegata rhizomes, and Crocus sativus stigmas, flowers, leaves and corms. A gas chromatography–mass spectrometry (GC–MS) method has been used. Separation of amino acids in the samples was carried out using a Shimadzu GC-MS-QP2010 equipped with an Rxi-5ms (Restek Corporation capillary column (30 m long, 0.25 mm outer diameter and 0.25 µm) with a liquid stationary phase (5% diphenyl and 95% polysiloxane) after derivatization with N-(t-butyldimethylsilyl)-N109 methyltrifluoroacetamide (MTBSTFA) reagent. The results obtained have shown that extracts from the aerial parts of plants investigated have a higher amino acid content and more diverse composition than the underground organs. Experimental data showed that Crocus leaves and Juno leaves extracts contain the highest general content of amino acids—31.99 mg/g and 14.65 mg/g respectively. All samples showed a high content of L-pyroglutamic acid (0.33–12.35 mg/g). Moreover, Crocus leaves and Juno leaves extracts had the most suitable amino acids composition and are prospective for further pharmacological studies.

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Section: Discussionmentioning

confidence: 88%

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confidence: 99%

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confidence: 99%

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Comparative Investigation of Amino Acids Content in the Dry Extracts of Juno bucharica, Gladiolus Hybrid Zefir, Iris Hungarica, Iris Variegata and Crocus Sativus Raw Materials of Ukrainian Flora

et al. 2020

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“…However, our data are difficult to compare with previously cited works, considering that in this work, both polyphenols and alkaloids were evaluated, targeting the whole flower. Recently, Jadouali and co-authors [21] evaluated the total phenolic content of different flower parts of Moroccan Crocus sativus L., showing a value of 54.59 mg gallic acid equivalents (GAE)/g for the whole saffron flower.…”

Section: Phytochemical Profiling Of the Different Extractsmentioning

confidence: 99%

Phytochemical Profile and Biological Properties of Colchicum triphyllum (Meadow Saffron)

Senizza

Rocchetti

Okur

et al. 2020

Foods

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In this work, the phytochemical profile and the biological properties of Colchicum triphyllum (an unexplored Turkish cultivar belonging to Colchicaceae) have been comprehensively investigated for the first time. Herein, we focused on the evaluation of the in vitro antioxidant and enzyme inhibitory effects of flower, tuber, and leaf extracts, obtained using different extraction methods, namely maceration (both aqueous and methanolic), infusion, and Soxhlet. Besides, the complete phenolic and alkaloid untargeted metabolomic profiling of the different extracts was investigated. In this regard, ultra-high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS) allowed us to putatively annotate 285 compounds when considering the different matrix extracts, including mainly alkaloids, flavonoids, lignans, phenolic acids, and tyrosol equivalents. The most abundant polyphenols were flavonoids (119 compounds), while colchicine, demecolcine, and lumicolchicine isomers were some of the most widespread alkaloids in each extract analyzed. In addition, our findings showed that C. triphyllum tuber extracts were a superior source of both total alkaloids and total polyphenols, being on average 2.89 and 10.41 mg/g, respectively. Multivariate statistics following metabolomics allowed for the detection of those compounds most affected by the different extraction methods. Overall, C. triphyllum leaf extracts showed a strong in vitro antioxidant capacity, in terms of cupric reducing antioxidant power (CUPRAC; on average 96.45 mg Trolox Equivalents (TE)/g) and ferric reducing antioxidant power (FRAP) reducing power (on average 66.86 mg TE/g). Interestingly, each C. triphyllum methanolic extract analyzed (i.e., from tuber, leaf, and flower) was active against the tyrosinase in terms of inhibition, recording the higher values for methanolic macerated leaves (i.e., 125.78 mg kojic acid equivalent (KAE)/g). On the other hand, moderate inhibitory activities were observed against AChE and α-amylase. Strong correlations (p < 0.01) were also observed between the phytochemical profiles and the biological activities determined. Therefore, our findings highlighted, for the first time, the potential of C. triphhyllum extracts in food and pharmaceutical applications.

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“…A mixture of petal and stamen materials possessed the total flavonoid content of 55.8 mg rutin equivalent (RE)/g after application of ultrasonic extraction [171]. In another study, by using Folin-Ciocalteu method the methanolic extract of petal contained the highest content of phenolics and flavonoids with 65.34 ± 1.74 mg of GAE/g of extract and 60.64 ± 2.71 mg of catechin equivalent (CE)/g of dry plant material, respectively, compared to the style and stamen parts [172].…”

Section: Phytoconstituents Of Saffron Crocus By-productsmentioning

confidence: 98%

Phytochemical and pharmacological analysis of certain plants applied in the Iranian and European folk medicine

Mottaghipisheh

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Chemical characterization and antioxidant compounds of flower parts of Moroccan crocus sativus L.

Cited by 31 publications

References 12 publications

Comparative Investigation of Amino Acids Content in the Dry Extracts of Juno bucharica, Gladiolus Hybrid Zefir, Iris Hungarica, Iris Variegata and Crocus Sativus Raw Materials of Ukrainian Flora

Comparative Investigation of Amino Acids Content in the Dry Extracts of Juno bucharica, Gladiolus Hybrid Zefir, Iris Hungarica, Iris Variegata and Crocus Sativus Raw Materials of Ukrainian Flora

Phytochemical Profile and Biological Properties of Colchicum triphyllum (Meadow Saffron)

Phytochemical and pharmacological analysis of certain plants applied in the Iranian and European folk medicine

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