Lipase and Lipoxygenase Activity of Pistacia Vera L.

Ballistreri, Gabriele; Catalano, A.E.; Arena, E.; Spagna, G.; Fallico, Biagio

doi:10.17660/actahortic.2011.912.25

Cited by 3 publications

(2 citation statements)

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“…In response to A. flavus infection, promoting LOX enzyme activity in kernels may be responsible for kernels unSFA peroxidation giving rise to oxidative rancidity in kernels. Also, promoting LOX enzyme activity in kernels in response to A. flavus infection may be responsible for ROS accumulation giving rise to promoting AB1 accumulation, in addition to kernels unSFA peroxidation (Ballistreri et al., 2011; Fountain et al., 2015; Nayak et al., 2017). Higher LOX enzyme activity in pistachio kernels is responsible for kernels unSFA peroxidation giving rise to lower linoleic acid (18:2) and linolenic acid (18:3) accumulation accompanying by higher palmitic acid (16:0), stearic acid (18:0), and oleic acid (18:1) accumulation giving rise to oxidative rancidity representing by higher peroxide value in kernels deteriorating kernels nutritional quality (Ballistreri et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

Effect of exogenous melatonin treatment onAspergillusdecay, aflatoxin B1 accumulation and nutritional quality of fresh “Akbari” pistachio fruit

Jannatizadeh

Aminian‐Dehkordi

Razavi

2021

J. Food Process. Preserv.

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This study aimed to investigate the mechanisms activated by melatonin treatment for attenuating Aspergillus decay, suppressing aflatoxin B1 (AB1) accumulation, and preserving nutritional quality in fresh pistachio fruits during storage at 25°C for 18 days. At 6‐day intervals, samples from each of three replications were selected, and subjected to biochemical analysis. Our results showed that fresh pistachio fruits treated with 1,000 µM melatonin and inoculated with Aspergillus flavus, exhibited lower Aspergillus decay accompanied by lower endogenous AB1 accumulation. Melatonin treated fruit also showed lower H2O2 and malondialdehyde accumulation during storage. Furthermore, higher linolenic acid accumulation accompanied by higher phenols and flavonoids accumulation as well as superior DPPH scavenging capacity in fresh pistachio fruits treated with 1,000 µM melatonin, could be ascribed to lower lipoxygenase and higher phenylalanine ammonia‐lyase enzymes activity, respectively, during storage. Besides, melatonin applying at 1,000 µM suppressed spore germination and germ tube elongation in A. flavus. Practical applications Aflatoxin B1 (AB1) accumulation as carcinogenic mycotoxin in pistachio fruits during Aspergillus flavus infection have been considered as a risk for human health. Since ROS generating from kernels could be responsible for triggering A. flavus growth and AB1 biosynthesis. Therefore, alleviating oxidative stress by melatonin treatment not only could be operative for attenuating fungal decay and decreasing AB1 accumulation but also could be favorable for maintaining the quality of fresh pistachio fruits.

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Section: Resultsmentioning

confidence: 99%

Effect of exogenous melatonin treatment onAspergillusdecay, aflatoxin B1 accumulation and nutritional quality of fresh “Akbari” pistachio fruit

Jannatizadeh

Aminian‐Dehkordi

Razavi

2021

J. Food Process. Preserv.

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“…There are no prior studies on the lipase activity of pecan kernel oil except Wakeling et al (2001), who reported 0.9-1.3 meq FFAs/g/h lipase activity. Although other tree nuts such as almond, walnut, peanut (Avramiuc, 2016), hazelnut (Seyhan et al, 2002), pistachio (Ballistreri et al, 2009), etc. have been reported to possess lipase activity; either the results were qualitative or expressed in different units due to different methodology, which made the comparison difficult with the present results.…”

Section: Quality Characteristics Of Pecan Nut Oilmentioning

confidence: 99%

Nutritional and phytochemical composition of pecan nut [Carya illinoinensis (Wangenh.) K. Koch] and its hypocholesterolemic effect in an animal model

Tanwar

Modgil

Goyal

2020

BFJ

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PurposeThe health-promoting phytochemicals such as phenolic compounds and flavonoids present in nonfatty portion of pecan nut remain overlooked. The present study aimed to evaluate the nutritional and antinutritional/phytochemical constituents of pecan nut and its effect (as a whole nut flour) on the blood lipid profile in the rat model.Design/methodology/approachThe nutritional composition as well as phytochemicals were evaluated by using standard chemical methods. A controlled randomized study was conducted to assess the hypocholesterolemic effect of nut supplementation in male Wistar albino rats.FindingsPhytochemicals/antinutrients analysis exhibited remarkable amount of phenolic compounds (47.05 ± 9.85–302.67 ± 7.72 mg GAE/100 g) and flavonoids (44.95 ± 0.23 mg/100 g) with low trypsin inhibitor activity (TIA) (1.18 ± 0.03 TIU/mg), saponins (0.49 ± 0.04 g/100 g), alkaloids (0.26 ± 0.03 mg/100 g), phytic acid (854.75 ± 15.47) and oxalates (8.15 ± 0.58 mg/100 g) content. Kernel oil showed 2.87 ± 0.75 meq O2/kg oil peroxide value (PV), well below the maximum permissible limit, demonstrating good oxidative stability of pecan oil. Pecan nut-supplemented diet exhibited a favorable alteration in the blood lipid profile by decreasing total cholesterol (TC) (from 85.42 ± 1.62–229.23 ± 3.43 to 72.24 ± 1.39–106.10 ± 1.69 mg/dl) and low-density lipoprotein cholesterol (LDL-C) (from 64.02 ± 1.96–199.07 ± 4.40 to 38.73 ± 0.79–55.48 ± 1.69 mg/dl) and increasing high density lipoprotein cholesterol (HDL-C) (from 8.70 ± 0.85–9.64 ± 1.10 to 20.25 ± 0.65–24.96 ± 0.56 mg/dl) when compared with control (CC).Research limitations/implicationsThis information would be further useful for assessing the biological quality of pecan nut as well as developing value-added food products by exploiting deoiled pecan protein concentrates.Originality/valuePecan nut is a rich source of traditional nutrients and phytochemicals and can be recommended to patients with hypercholesterolemia and related cardiovascular diseases.

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Antidiabetic and Anticholinesterase Properties of Extracts and Pure Metabolites of Fruit Stems of Pistachio (Pistacia vera L.)

Lawali

Akyüz

Aydin

et al. 2020

COC

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: Five metabolites were isolated by chromatographic methods from the fruit stems of P. vera and their chemical structures were characterized as masticadienonic acid (1), tirucallol (2), masticadienolic acid (3), pistachionic acid (4) and inulobiose (5) via FT-IR, 1H-NMR, 13C-NMR, 1D-NMR and 2D-NMR. Pistachionic acid (4), a new shikimic acid derivative, was isolated from the ethanol extract for the first time. The hexane, chloroform, ethanol extracts and pure metabolites exhibited antidiabetic properties by inhibiting α- glycosidase and α-amylase enzymes at different rates. Their inhibitory effects against the α- glycosidase enzyme were also higher than that of the acarbose (IC50=10.30 mg/mL). Masticadienolic acid (3) (IC50=0.03 mg/mL), masticadienonic acid (1) (IC50=0.13 mg/mL) and hexane extract (IC50=0.09 mg/mL) with the lowest IC50 values were found to be most active substances. Nevertheless, the inhibitory effect of acarbose against the α-amylase enzyme was determined to be higher than the inhibition effects of the extracts and pure metabolites. According to the IC50 values, the best inhibitors against the α-amylase were ethanol extract (IC50=5.17 mg/mL), pistachionic acid (4) (IC50=7.35 mg/mL), tirucallol (2) (IC50=7.58 mg/mL) and masticadienolic acid (3) (IC50=8.22 mg/mL), respectively among the applications. In addition, anticholinesterase properties of the extracts and pure metabolites were investigated by testing the inhibitory properties against acetylcholine esterase (AChE) and butrylcholine esterase (BChE) enzymes activities. The results showed that the anticholinesterase properties of all extracts and pure metabolites were weaker than those of the commercial cholinesterase inhibitors, neostigmine and galantamine, and all applications reduced the activity of these enzymes at very high concentrations.

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Lipase and Lipoxygenase Activity of Pistacia Vera L.

Cited by 3 publications

References 0 publications

Effect of exogenous melatonin treatment onAspergillusdecay, aflatoxin B1 accumulation and nutritional quality of fresh “Akbari” pistachio fruit

Effect of exogenous melatonin treatment onAspergillusdecay, aflatoxin B1 accumulation and nutritional quality of fresh “Akbari” pistachio fruit

Nutritional and phytochemical composition of pecan nut [Carya illinoinensis (Wangenh.) K. Koch] and its hypocholesterolemic effect in an animal model

Antidiabetic and Anticholinesterase Properties of Extracts and Pure Metabolites of Fruit Stems of Pistachio (Pistacia vera L.)

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