scholarly journals Antioxidant Effects of Hemp (Cannabis sativa L.) Inflorescence Extract in Stripped Linseed Oil

Antioxidants ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1131
Author(s):  
Carolina Cantele ◽  
Marta Bertolino ◽  
Fatema Bakro ◽  
Manuela Giordano ◽  
Małgorzata Jędryczka ◽  
...  
Keyword(s):  
Metal Ion ◽  
Cannabis Sativa ◽  
Linseed Oil ◽  
Ethanolic Extract ◽  
Natural Antioxidants ◽  
Effective Concentration ◽  
Degree Of Unsaturation ◽  
High Degree ◽  
Antioxidant Effects ◽  
Hexanal Content

The ability of hemp (Cannabis sativa L.) inflorescence extract to counteract lipid oxidation was studied in stripped linseed oil. The ethanolic extract was characterized in terms of terpenes (6.00 mg/mL), cannabidiol (4.99% w/w), phenolic compounds (1.80 mg gallic acid equivalents (GAE)/mL), antiradical, and metal ion-chelating activities (50% effective concentration (EC50) of 2.47 mg/mL and 0.39 mg/mL, respectively). The stripped linseed oil, used as control (CO), was mixed with hemp extract (HO) or α-tocopherol (EO) at a ratio of 0.6% (w/w) and stored for 7 days in darkness at 40 °C. Hemp extract reduced the oxidation and lipolysis processes. At the end of the storage, HO showed a significantly higher level of α-linolenic acid (ALA; 26.64 g/100 g), lower peroxide value (PV) (21.19 meq O2/kg oil), and lower hexanal content (7.67 mmol/kg oil) than those found in the control. In contrast, EO showed a marked lipolysis (the free fatty acids increased by 42.57%) and a noticeable oxidation, since the ALA content decreased by 2.10% and a PV of 50 meq O2/kg oil was observed. This study demonstrates that hemp inflorescences can be used as a source of natural antioxidants in vegetable oils and lipid products to retard their oxidation, especially those characterized by a high degree of unsaturation.

scholarly journals Comparative Antioxidant Activity on The Ficus benjamina and Annona reticulata Leaves

2015 ◽  
Vol 4 (1) ◽  
pp. 21
Author(s):  
Nyi Mekar Saptarini ◽  
Irma Erika Herawati
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Ethanolic Extract ◽  
Natural Antioxidants ◽  
Ethyl Acetate Fraction ◽  
Hexane Fraction ◽  
Ficus Benjamina ◽  
Water Fraction ◽  
Free Radical Formation ◽  
Annona Reticulata

Antioxidants can prevent free radical formation. Natural antioxidants found in many plants, such as <em>Ficus benjamina </em>and <em>Annona reticulata</em>. The study aimed to compare the antioxidant activity of extracts and fractions of <em>Ficus benjamina </em>and <em>Annona reticulata</em> leaves against 1,1-diphenyl-2-picrilhydrazyl. The steps of this study consist of extraction, fractionation with n-hexane, ethyl acetate and water, phytochemical screening, antioxidant activity determination, and comparing the IC<sub>50</sub> values. Percentage scavenging activity of the extracts and fractions against DPPH was calculated to determine the antioxidant activity. The IC<sub>50</sub> value of <em>Ficus benjamina </em>was 127.86 ppm for ethanolic extract, 94.01 ppm for water fraction, 115.48 ppm for ethyl acetate fraction, and 335.50 ppm for n-hexane fraction. The IC<sub>50</sub> value of <em>Annona reticulata</em> was 274.31 ppm for ethanolic extract, 211.42 ppm for water fraction, 367.91 ppm for ethyl acetate fraction, and 741.08 ppm for n-hexane fraction. The results showed that the <em>Ficus benjamina</em> water fraction was the best antioxidant compared to other extract and fraction.

scholarly journals SOAPS AS FERMENT-INHIBITING AGENTS

1914 ◽  
Vol 19 (3) ◽  
pp. 239-250 ◽  
Author(s):  
James W. Jobling ◽  
William Petersen
Keyword(s):  
Fatty Acids ◽  
Olive Oil ◽  
Linseed Oil ◽  
Saturated Fatty Acids ◽  
Cod Liver Oil ◽  
Degree Of Unsaturation ◽  
Croton Oil

1. Sodium soaps prepared from olive oil, croton oil, cod-liver oil, linseed oil, etc., have the property of inhibiting the action of trypsin and leucoprotease. 2. The activity of these soaps is dependent upon the degree of unsaturation of the fatty acids and is in proportion to their iodin value. 3. Saturation of the acids with a halogen (iodin) causes a loss of this property. 4. Soaps of the saturated fatty acids tested do not have this influence on ferments.

THE APPLICATION OF NATURAL AND SYNTHETIC ANTIOXIDANTS TO INCREASE THE OXIDATION RESISTANCE OF LINSeED OIL

2020 ◽  
Vol 13 (4(50)) ◽  
pp. 41-51
Author(s):  
I. P. Edimecheva ◽  
A. A. Sosnovskaya ◽  
O. I. Shadyro
Keyword(s):  
Ascorbic Acid ◽  
Kinetic Data ◽  
Room Temperature ◽  
Linseed Oil ◽  
Ascorbyl Palmitate ◽  
Natural Antioxidants ◽  
Oxidation Products ◽  
Free Access ◽  
Synthetic Antioxidants ◽  
Acid Esters

The effectiveness of several synthetic and natural antioxidants (AO) in inhibiting the oxidation of linseed oil has been studied. Under the conditions of accelerated oxidation at 100 °С, the values of the induction period of oxidation and stabilization factors of linseed oil in the presence of additives of known phenolic AOs, tocopherols, fat-soluble ascorbic acid esters and compositions based on them were determined. The data obtained indicate that ascorbic acid esters effectively inhibit the oxidation of linseed oil. The stabilizing effect of ascorbyl palmitate (AP) increases with an elevation in the content of α-linolenic acid in the oil and a decrease in the oxidative stability of the oil. One AP provided better stabilization efficiency than some known compositions based on it. Kinetic data on the accumulation of oxidation products in linseed oil with AP additives during the storage at room temperature and with free access of the air were obtained, demonstrating high inhibiting activity of AP under these conditions, which provides a possibility to increase the shelf life of the stabilized oil up to 18 months or more.

Comparative Antioxidant Activity on The Ficus benjamina and Annona reticulata Leaves

2015 ◽  
Vol 4 (1) ◽  
pp. 21
Author(s):  
Nyi Mekar Saptarini ◽  
Irma Erika Herawati
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Ethanolic Extract ◽  
Natural Antioxidants ◽  
Ethyl Acetate Fraction ◽  
Hexane Fraction ◽  
Ficus Benjamina ◽  
Water Fraction ◽  
Free Radical Formation ◽  
Annona Reticulata

Antioxidants can prevent free radical formation. Natural antioxidants found in many plants, such as <em>Ficus benjamina </em>and <em>Annona reticulata</em>. The study aimed to compare the antioxidant activity of extracts and fractions of <em>Ficus benjamina </em>and <em>Annona reticulata</em> leaves against 1,1-diphenyl-2-picrilhydrazyl. The steps of this study consist of extraction, fractionation with n-hexane, ethyl acetate and water, phytochemical screening, antioxidant activity determination, and comparing the IC<sub>50</sub> values. Percentage scavenging activity of the extracts and fractions against DPPH was calculated to determine the antioxidant activity. The IC<sub>50</sub> value of <em>Ficus benjamina </em>was 127.86 ppm for ethanolic extract, 94.01 ppm for water fraction, 115.48 ppm for ethyl acetate fraction, and 335.50 ppm for n-hexane fraction. The IC<sub>50</sub> value of <em>Annona reticulata</em> was 274.31 ppm for ethanolic extract, 211.42 ppm for water fraction, 367.91 ppm for ethyl acetate fraction, and 741.08 ppm for n-hexane fraction. The results showed that the <em>Ficus benjamina</em> water fraction was the best antioxidant compared to other extract and fraction.

Plant-derived medicines for neuropathies: a comprehensive review of clinical evidence

2019 ◽  
Vol 30 (6) ◽  
pp. 671-684 ◽  
Author(s):  
Farnaz Ebrahimi ◽  
Mohammad Hosein Farzaei ◽  
Roodabeh Bahramsoltani ◽  
Mojtaba Heydari ◽  
Kiana Naderinia ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Viral Infections ◽  
Cannabis Sativa ◽  
Linseed Oil ◽  
Curcuma Longa ◽  
Herbal Medicines ◽  
Cochrane Library ◽  
Congenital Diseases ◽  
Beneficial Effects ◽  
Long Time

AbstractNeuropathy is defined as the damage to the peripheral or central nervous system accompanied by pain, numbness, or muscle weakness, which can be due to congenital diseases or environmental factors such as diabetes, trauma, or viral infections. As current treatments are not sufficiently able to control the disease, studies focusing on the identification and discovery of new therapeutic agents are necessary. Natural products have been used for a long time for the management of different neurological problems including neuropathies. The aim of the present study is to review the current clinical data on the beneficial effects of medicinal plants in neuropathy. Electronic databases including PubMed, Scopus, and Cochrane Library were searched with the keywords ‘neuropathy’ in the title/abstract and ‘plant’ or ‘extract’ or ‘herb’ in the whole text from inception until August 2017. From a total of 3679 papers, 22 studies were finally included. Medicinal plants were evaluated clinically in several types of neuropathy, including diabetic neuropathy, chemotherapy-induced peripheral neuropathy, carpal tunnel syndrome, and HIV-associated neuropathy. Some studies reported the improvement in pain, nerve function, nerve conduction velocity, and quality of life.Cannabis sativa(hemp),Linum usitatissimum(linseed oil), capsaicin, and a polyherbal Japanese formulation called Goshajinkigan had the most evidence regarding their clinical efficacy. Other investigated herbal medicines in neuropathy, such asMatricaria chamomilla(chamomile),Curcuma longa(turmeric), andCitrullus colocynthis(colocynth), had only one clinical trial. Thus, future studies are necessary to confirm the safety and efficacy of such natural medicines as a complementary or alternative treatment for neuropathy.

scholarly journals Saussurea lappa Ethanolic Extract Attenuates Triamcinolone Acetonide-Induced Pulmonary and Splenic Tissue Damage in Rats via Modulation of Oxidative Stress, Inflammation, and Apoptosis

Antioxidants ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 396 ◽  
Author(s):  
Ghada I. Abd El-Rahman ◽  
Amany Behairy ◽  
Nora M. Elseddawy ◽  
Gaber El-Saber Batiha ◽  
Wael N. Hozzein ◽  
...  
Keyword(s):  
Side Effects ◽  
Triamcinolone Acetonide ◽  
Ethanolic Extract ◽  
Natural Antioxidants ◽  
Treated Group ◽  
Splenic Tissue ◽  
Biologically Active ◽  
Interleukin 12 ◽  
Control Group ◽  
Saussurea Lappa

Background: In this era, worldwide interest has been directed towards using natural antioxidants to guard against drug side effects. Saussurea lappa is a famous medicinal plant with many biologically active compounds. Triamcinolone acetonide (TA) is an extensively used glucocorticoid. Hence, this study explored, for the first time, the possible beneficial effects of S. lappa ethanolic extract on TA-induced oxidative damage in the lung and spleen of rats. Methods: Five experimental groups were used: control group, S. lappa-treated group (600 mg/kg/day, orally), TA-treated group (40 mg/kg/twice/week I/P), S. lappa + TA co-treated group, and S. lappa/TA prophylactic group. Results: TA exposure significantly induced leukocytosis and neutrophilia. In addition, TA significantly reduced the levels of C-reactive protein, interleukin-12, tumor necrosis factor α, and immunoglobulins. Lung Caspase-3 overexpression and splenic CD8+ downregulation were also noted in the TA group. TA treatment significantly increased malondialdehyde concentration but reduced superoxide dismutase and glutathione peroxidase activities. S. lappa counteracted the TA oxidative and apoptotic effects. The best results were recorded in the prophylactic group. Conclusions: S. lappa has a remarkable protective effect via its anti-inflammatory, anti-apoptotic, and antioxidant capacity. Thus, it could be a candidate as a natural antioxidant to face glucocorticoid’s harmful side effects.

In vitro and in vivo antioxidant effects of the ethanolic extract of Swertia chirayita

2011 ◽  
Vol 136 (2) ◽  
pp. 309-315 ◽  
Author(s):  
Yue Chen ◽  
Bo Huang ◽  
Jingsheng He ◽  
Li Han ◽  
Yichao Zhan ◽  
...  
Keyword(s):  
Ethanolic Extract ◽  
Swertia Chirayita ◽  
Antioxidant Effects

scholarly journals In Vitro Mammalian Arginase Inhibitory and Antioxidant Effects of Amide Derivatives Isolated from the Hempseed Cakes (Cannabis sativa)

2017 ◽  
Vol 3 (03) ◽  
pp. e64-e67 ◽  
Author(s):  
Mélanie Bourjot ◽  
Andy Zedet ◽  
Belinda Demange ◽  
Marc Pudlo ◽  
Corine Girard-Thernier
Keyword(s):  
Cannabis Sativa ◽  
Amide Derivatives ◽  
Antioxidant Effects

scholarly journals Identification and functional analysis of enzymes required for precorrin-2 dehydrogenation and metal ion insertion in the biosynthesis of sirohaem and cobalamin in Bacillus megaterium

2003 ◽  
Vol 370 (2) ◽  
pp. 505-516 ◽  
Author(s):  
Evelyne RAUX ◽  
Helen K. LEECH ◽  
Richard BECK ◽  
Heidi L. SCHUBERT ◽  
Patricio J. SANTANDER ◽  
...  
Keyword(s):  
Bacillus Megaterium ◽  
Metal Ion ◽  
Enzyme Assay ◽  
Sequence Alignments ◽  
Rich Region ◽  
In Vitro Synthesis ◽  
Cobalamin Biosynthesis ◽  
High Degree ◽  
Degree Of Similarity

In Bacillus megaterium, the hemAXBCDL genes were isolated and were found to be highly similar to the genes from Bacillus subtilis that are required for the conversion of glutamyl-tRNA into uroporphyrinogen III. Overproduction and purification of HemC (porphobilinogen deaminase) and -D (uroporphyrinogen III synthase) allowed these enzymes to be used for the in vitro synthesis of uroporphyrinogen III from porphobilinogen. A second smaller cluster of three genes (termed sirABC) was also isolated and found to encode the enzymes that catalyse the transformation of uroporphyrinogen III into sirohaem on the basis of their ability to complement a defined Escherichia coli (cysG) mutant. The functions of SirC and -B were investigated by direct enzyme assay, where SirC was found to act as a precorrin-2 dehydrogenase, generating sirohydrochlorin, and SirB was found to act as a ferrochelatase responsible for the final step in sirohaem synthesis. CbiX, a protein found encoded within the main B. megaterium cobalamin biosynthetic operon, shares a high degree of similarity with SirB and acts as the cobaltochelatase associated with cobalamin biosynthesis by inserting cobalt into sirohydrochlorin. CbiX contains an unusual histidine-rich region in the C-terminal portion of the protein, which was not found to be essential in the chelation process. Sequence alignments suggest that SirB and CbiX share a similar active site to the cobaltochelatase, CbiK, from Salmonella enterica.

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