scholarly journals Bioactive Molecules of Mandarin Seed Oils Diminish Mycotoxin and the Existence of Fungi

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7130
Author(s):  
Salman S. Alharthi ◽  
Ahmed Noah Badr ◽  
Karolina Gromadzka ◽  
Kinga Stuper-Szablewska ◽  
Adel Gabr Abdel-Razek ◽  
...  

Mandarin is a favorite fruit of the citrus family. Mandarin seeds are considered a source of nontraditional oil obtained from byproduct materials. This investigation aimed to assess the biomolecules of mandarin seeds and evaluated their antimycotic and antimycotoxigenic impact on fungi. Moreover, it evaluated the protective role of mandarin oil against aflatoxin toxicity in cell lines. The two types of extracted oil (fixed and volatile) were ecofriendly. The fatty acid composition, tocopherol, sterols, and carotenoids were determined in the fixed oil, whereas volatiles and phenolics were estimated in the essential oil. A mixture of the two oils was prepared and evaluated for its antimicrobial impact. The reduction effect of this mixture was also investigated to reduce mycotoxin secretion using a simulated experiment. The protective effect of the oil was evaluated using healthy strains of cell lines. Fixed oil was distinguished by the omega fatty acid content (76.24%), lutein was the major carotenoid (504.3 mg/100 g) and it had a high β-sitosterol content (294.6 mg/100 g). Essential oil contained limonene (66.05%), α-pinene (6.82%), β-pinene (4.32%), and γ-terpinene (12.31%) in significant amounts, while gallic acid and catechol were recorded as the dominant phenolics. Evaluation of the oil mix for antimicrobial potency reflected a considerable impact against pathogenic bacteria and toxigenic fungi. By its application to the fungal media, this oil mix possessed a capacity for reducing mycotoxin secretion. The oil mix was also shown to have a low cytotoxic effect against healthy strains of cell lines and had potency in reducing the mortality impact of aflatoxin B1 applied to cell lines. These results recommend further study to involve this oil in food safety applications.

Proceedings ◽  
2018 ◽  
Vol 2 (25) ◽  
pp. 1566
Author(s):  
Eda Becer ◽  
Hilal Kabadayı ◽  
Filiz Meriçli ◽  
Ali Hikmet Meriçli ◽  
Barış Kıvançlı ◽  
...  

Opuntia ficus indica L. fruit (cactus pear) seed oil is used in traditional and complementary therapies for its numerous health benefits. The aim of this study was to analyse of the fatty acid content and apoptotic induction effects of spiny and thornless Opuntia ficus indica L. seed (CPS) oils. Spiny and thornless Opuntia ficus indica L. seed oils obtained by supercritical CO2 extraction method and analyzed by GC-MS. Different concentrations of almond oils were incubated for 24 h and 48 h with Colo-320 and Colo-741 cells. Cell growth and cytotoxicity were measured by MTT assays. TUNEL assay was used to detect DNA fragmentation in both cell lines. Linoleic acid was dominant fatty acid followed by oleic acid, palmitic acid and elaidic acid in both type of seed oil. In MTT, spiny CPS oil was found to be active against Colo-320 and Colo-741 cells with 1:16 dilution for 48 h. Also, 1:8 and 1:16 dilutions of thornless CPS oil showed significant reduction in the number of viable cells in Colo-320 and Colo-741 cells, respectively. The number of TUNEL positive cells were significantly higher in Colo-320 cells treated with thornless CPS when compare with control group (p < 0.05).We conclude that thornless CPS oil may have anticancer effect on primer colon adenocarcinoma cell lines. The effect can be explained by inducing apoptosis. Thus, they could be a potential novel therapeutic agent in colon cancer therapy.


2018 ◽  
Vol 64 (3) ◽  
pp. 20-30
Author(s):  
Ines Ouerghemmi ◽  
Mouna Ben Farhat ◽  
Hela Harbeoui ◽  
Majdi Hammami ◽  
Ghaith Hamdaoui ◽  
...  

Summary Introduction: Solanum sodomaeum L. has been observed to have several medicinal properties, in particular, in the treatment of several types of human skin cancer. Objective: The influence of the maturation stage of S. sodomaeum fruits on the total lipid contents, fatty acid profiles, essential oil yields and compositions, as well as the antibacterial and antioxidant activities of the essential oils, was investigated. Methods: The fatty acid and essential oil constituents were identified using gas chromatography (GC) and GC–mass spectrometry (GC–MS). The antioxidant properties of essential oil and vegetal oil were assessed using 1,1-diphenyl-2-picryl-hydrazyl (DPPH) scavenging and reducing power assays. The antibacterial activity of essential oil was tested using the disc diffusion assay for resistance in human pathogenic bacteria. Results: Mature fruits showed higher total lipid content (17%) and were characterised by polyunsaturated fatty acids (53.87%), represented mainly by linoleic acid (53.11%). Similar yields of essential oils were detected for immature (0.43%) and mature (0.45%) fruits. Tetrahydronaphthalene (41.79%) was detected as the major essential oil component at the immature stage versus dihydrocoumarin pentane (18.27%), hexadecanoic acid (17.43%) and 2-undecanone (13.20%) in mature fruits. The DPPH test showed that essential oils had better antioxidant properties; however, the vegetal oils showed better performance in the reducing power assay. Moreover, the essential oil of S. sodomaeum mature fruits was active against bacterial strains. Conclusions: S. sodomaeum fruits could be a valuable source of natural antioxidants and antibacterial agents.


Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1891
Author(s):  
Mehrdad Hanifei ◽  
Shaghayegh Mehravi ◽  
Mostafa Khodadadi ◽  
Anita Alice Severn-Ellis ◽  
David Edwards ◽  
...  

Coriander (Coriander sativum L.) is an annual herb mainly cultivated for its seed characteristics. Drought stress is a major problem which affects coriander behaviour through biochemical responses. This study aimed to determine the nature and magnitude of epistasis in inheritance of seed yield (SY), percent of dehulled seed (PODS), percent of seed hulls (POSH), essential oil content (EOC), essential oil yield (EOY), dehulled seed fatty acid content (DSFAC), hull fatty acid content (HFAC), fatty acid content (FAC), and fatty acid yield (FAY), and to estimate additive and dominance variance for the traits not influenced by epistasic effects. Three testers, TN-59-158 (highly drought-susceptible), TN-58-230 (highly drought-tolerant, but low-yielding), and their F1 hybrid were each crossed for six genotypes. The experiment was performed under different levels of water deficit: control (C), moderate water deficit (MWD), and severe water deficit (SWD) conditions. Epistasis affected the expression of SY, EOC, EOY, FAC, and FAY in all water conditions, PODS in C, POSH in SWD, HFAC in MWD, and DSFAC in both C and MWD conditions. Total epistasic effects were partitioned, showing that both [i] and [j + l] type interactions were significant, with a prevalent influence of [i] type interactions on these traits except for POSH and FAC in the SWD condition, which exhibited a higher value of the [j + l] type. Both additive and non-additive gene actions were significant for those traits not significantly affected by epistasis in C, MWD, or SWD conditions. An additive type of gene action was preponderant for PODS in MWD and SWD, POSH in MWD, DSFAC in SWD, and HFAC in C and SWD conditions.


Author(s):  
C. S. Bricker ◽  
S. R. Barnum ◽  
B. Huang ◽  
J. G. Jaworskl

Cyanobacteria are Gram negative prokaryotes that are capable of oxygenic photosynthesis. Although there are many similarities between eukaryotes and cyanobacteria in electron transfer and phosphorylation during photosynthesis, there are two features of the photosynthetic apparatus in cyanobacteria which distinguishes them from plants. Cyanobacteria contain phycobiliproteins organized in phycobilisomes on the surface of photosynthetic membrane. Another difference is in the organization of the photosynthetic membranes. Instead of stacked thylakolds within a chloroplast envelope membrane, as seen In eukaryotes, IntracytopIasmlc membranes generally are arranged in three to six concentric layers. Environmental factors such as temperature, nutrition and light fluency can significantly affect the physiology and morphology of cells. The effect of light Intensity shifts on the ultrastructure of Internal membrane in Anabaena variabilis grown under controlled environmental conditions was examined. Since a major constituent of cyanobacterial thylakolds are lipids, the fatty acid content also was measured and correlated with uItrastructural changes. The regulation of fatty acid synthesis in cyanobacteria ultimately can be studied if the fatty acid content can be manipulated.


Sign in / Sign up

Export Citation Format

Share Document