scholarly journals Nutritional assessment, phytochemical composition and antioxidant analysis of the pulp and seed of medjool date grown in Mexico

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6821
Author(s):  
Ricardo Salomón-Torres ◽  
Noé Ortiz-Uribe ◽  
Benjamín Valdez-Salas ◽  
Navor Rosas-González ◽  
Conrado García-González ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Nutritional Assessment ◽  
Antioxidant Activities ◽  
Saturated Fatty Acids ◽  
Dry Weight ◽  
Nutrient Content ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Total Phenolic ◽  
Spectrometry Analysis

The aim of this study was the characterization of fatty acids, antioxidant activity, some physical properties, nutrient content, sugars, and minerals in the pulp and seeds of the date cultivar ‘Medjool’ (Phoenix dactylifera L.) grown in Mexico. The samples were obtained at maturity (Tamar) in the 2017 harvest season in the valleys of San Luis Rio Colorado and Mexicali, Mexico. The following average values were obtained on a % dry weight basis for pulp and seeds, respectively: protein, 3.14% and 4.84%; lipids, 0.75% and 9.94%; fiber, 6.34% and 66.79%; total sugars, 75.32% and 5.88%; reducing sugars, 70.26% and 4.40%; and sucrose, 5.06% and 1.46%. Analysis of the minerals revealed that the most abundant elements for the pulp were: potassium, 851.98 mg/100 g; magnesium, 142.97 mg/100 g; and phosphorus, 139.40 mg/100 g, whereas for the seeds, they were potassium, 413.36 mg/100 g; sulfur, 151.36 mg/100 g; and phosphorus, 92.42 mg/100 g. Gas chromatography-mass spectrometry analysis revealed that the major unsaturated fatty acid was oleic acid, at 52.34% and 45.92%, respectively, for pulp and seeds. The main saturated fatty acids were palmitic acid (6.75%) and lauric acid (17.24%) in pulp and seeds, respectively. The total phenolic content was 1.16 and 13.73 mg GAE/100 g for pulp and seeds, respectively. Finally, the antioxidant activities were: b-carotene, 65.50% and 47.75%; DPPH, 0.079 IC50 g/L and 0.0046 IC50 g/L; and ABTS, 13.72 IC50 g/L and 0.238 IC50 g/L, respectively. The results obtained in this study confirm that the ‘Medjool’ cultivar grown in Mexico has the same quality of nutrients and antioxidants as those grown in the other main date-producing countries.

Alternative method for gas chromatography-mass spectrometry analysis of short-chain fatty acids in faecal samples

2012 ◽  
Vol 35 (15) ◽  
pp. 1906-1913 ◽  
Author(s):  
Rocio García-Villalba ◽  
Juan A. Giménez-Bastida ◽  
Maria T. García-Conesa ◽  
Francisco A. Tomás-Barberán ◽  
Juan Carlos Espín ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Short Chain Fatty Acids ◽  
Short Chain ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Spectrometry Analysis ◽  
Alternative Method ◽  
Faecal Samples

scholarly journals Chemical Characterization and Biological Properties of Royal Jelly Samples From the Mediterranean Area

2020 ◽  
Vol 15 (2) ◽  
pp. 1934578X2090808 ◽  
Author(s):  
Soukaïna El-Guendouz ◽  
Alexandra M. Machado ◽  
Smail Aazza ◽  
Badiaâ Lyoussi ◽  
Maria G. Miguel ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Total Protein ◽  
Royal Jelly ◽  
Chemical Characterization ◽  
Biological Properties ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Total Phenolic ◽  
Decenoic Acid ◽  
Spectrometry Analysis

Royal jelly (RJ) is a bee product that has high nutritional value and is beneficial for the human health, earning importance as a functional food. Thus, the characterization of its main biological properties is with high importance. In this work, 6 RJ samples obtained in Morocco, Portugal, and Spain were evaluated in terms of total phenol and flavone/flavonol contents; total protein; 10-hydroxy-2-decenoic acid (10-HDA); volatiles composition; antioxidant and anti-inflammatory properties; and inhibition of tyrosinase, xanthine oxidase (XO), and acetylcholinesterase (AChE) activities. Total phenolic content ranged from 3 to 9 mg gallic acid equivalent/g RJ, and flavone/flavonol content from 0.1 to 0.5 mg quercetin equivalent/g RJ. 10-Hydroxy-2-decenoic acid content varied from 0.9% to 1.2% and total protein from 5.5% to 29.7%. Gas chromatography-flame ionization detector and gas chromatography-mass spectrometry analysis showed RJ volatiles dominated by linolenic acid, 2-decenoic acid, and octanoic acid in variable amounts. The antioxidant activity was monitored through nitric oxide (NO) scavenging activity and hydrogen peroxide (H2O2) scavenging capacity, where the IC50 ranged from 2.3 to 3.4 and 0.2 to 1.5 mg/mL, respectively. Anti-AChE activity IC50 ranged from 0.7 to 4.6 mg/mL, while XO inhibition IC50 ranged from 3.3 to 11.9 mg/mL. The results showed that phenols and flavonoids highly contributed to the RJ biological properties in contrast to 10-HDA and proteins.

scholarly journals Fatty Acid Profile, Tocopherol Content of Seed Oil, and Nutritional Analysis of Seed Cake of Wood Apple (Limonia acidissima L.), an Underutilized Fruit-Yielding Tree Species

Horticulturae ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 275
Author(s):  
Shrinivas Lamani ◽  
Konerira Aiyappa Anu-Appaiah ◽  
Hosakatte Niranjana Murthy ◽  
Yaser Hassan Dewir ◽  
Hail Z. Rihan
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Fatty Acid Content ◽  
Gas Chromatography Mass Spectrometry ◽  
Total Phenolic ◽  
Seed Cake ◽  
Limonia Acidissima

The present study was aimed at analyzing the fatty acid composition, tocopherols, and physico-chemical characterization of wood apple (Limonia acidissima L.) seed oil and the nutritional profile of seed cake. The fatty acids in seed oil were analyzed by gas chromatography–mass spectrometry (GC-MS), and the total seed oil was 32.02 ± 0.08%, comprising oleic (21.56 ± 0.57%), alpha-linolenic (16.28 ± 0.29%), and linoleic acid (10.02 ± 0.43%), whereas saturated fatty acid content was 33.38 ± 0.60% including palmitic (17.68 ± 0.65%) and stearic acid (14.15 ± 0.27%). A greater amount of unsaturated fatty acids (52.37%) were noticed compared to saturated fatty acids (33.38%); hence the seed is highly suitable for nutritional and industrial applications. Gamma-tocopherol was present in a higher quantity (39.27 ± 0.07 mg/100 g) as compared to alpha (12.64 ± 0.01 mg/100 g) and delta (3.77 ± 0.00 mg/100 g) tocopherols, which are considered as natural antioxidants. The spectrophotometric technique was used for quantitative analysis of total phenolic content, and it revealed 135.42 ± 1.47 mg gallic acid equivalent /100 g DW in seed cake. All the results of the studied seed oil and cake showed a good source of natural functional ingredients for several health benefits.

Production of new extracellular glycolipids by a strain ofCellulomonas cellulans(Oerskovia xanthineolytica) and their structural characterization

1998 ◽  
Vol 44 (3) ◽  
pp. 238-243 ◽  
Author(s):  
S Arino ◽  
R Marchal ◽  
J -P Vandecasteele
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Cell Wall ◽  
Culture Medium ◽  
Soil Samples ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Spectrometry Analysis ◽  
Hydrolysis Of

Glycolipid-producing bacteria were isolated from soil samples. One of the strains, identified as Cellulomonas cellulans (Oerskovia xanthineolytica), was found to produce significant amounts of unusual extracellular glycolipids, which were shown to be composed of at least 11 individual compounds. Hydrolysis of the glycolipid mixture and gas chromatography - mass spectrometry analysis revealed the presence of fatty acids and hydroxy fatty acids ranging from C10to C18, 16 of which were identified. The glycidic moiety consisted of glucose, rhamnose, and ribose. The same sugars were found to be present in the cell wall of Cellulomonas cellulans, which also contained polar lipids including glycolipids. During strain cultivation, glycolipid excretion was stimulated when nitrogen was exhausted from the culture medium. In these conditions, the production in fermenters on glycerol, expressed in glucose equivalents, reached 8.9 g/L. Cell hydrophobicity, which rose to 95% during the growth phase, decreased to 50% during the production phase. The overall results show that the bacterial cell wall is involved in the synthesis of these new extracellular glycolipids.Key words: glycolipid, excretion, Cellulomonas cellulans, Oerskovia xanthineolytica, cell wall.

scholarly journals Antigenotoxic and Antioxidant Activity of Methanol Stem Bark Extract of Napoleona Vogelii Hook & Planch (Lecythidaceae) In Cyclophosphamide-Induced Genotoxicity

2017 ◽  
Vol 5 (7) ◽  
pp. 866-874 ◽  
Author(s):  
Victor Ikumawoyi ◽  
Esther Agbaje ◽  
Olufunsho Awodele
Keyword(s):  
Unsaturated Fatty Acids ◽  
Antioxidant Activities ◽  
Stem Bark ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Bark Extract ◽  
Sprague Dawley ◽  
Spectrometry Analysis ◽  
Sprague Dawley Rats ◽  
Stem Bark Extract

BACKGROUND: Napoleona vogelii is used in traditional medicine for cancer management.AIM: The study was conducted to evaluate the antigenotoxic and antioxidant activities of methanol stem bark extract of N. vogelii in male Sprague Dawley rats.MATERIALS AND METHOD: Thirty male Sprague Dawley rats were randomly divided into group 1 (control) administered 10 mL/kg distilled water, groups 2 and 3 were co-administered 100 mg/kg, 200 mg/kg of N. vogelli and 5 mg/kg cyclophosphamide (CPA) respectively for 7 days p.o. Groups 4 and 5 were administered only 5 mg/kg CPA and 200 mg/kg NV respectively.RESULTS: The LD50 oral was greater than 4 g/kg. There were significant (p < 0.0001) increases in plasma enzymatic and non-enzymatic antioxidant enzymes and significant (p < 0.0001) decrease in percentage micronuclei in bone marrow of extract treated rats compared to rats administered 5 mg/kg CPA alone. There was steatosis pointing to cytotoxic injury in the liver of rats co-administered 200 mg/kg NV and 5 mg/kg CPA. Gas chromatography-mass spectrometry analysis of the extract showed the presence of phytol and unsaturated fatty acids.CONCLUSION: N. vogelii possesses antigenotoxic and antioxidant activities associated with the presence of phytochemicals, phytol and unsaturated fatty acids.

Altered Platelet Fatty Acids in Dengue Cases by Gas Chromatography-Mass Spectrometry Analysis

Intervirology ◽  
2019 ◽  
Vol 62 (2) ◽  
pp. 57-64 ◽  
Author(s):  
Daisy Mariya Samadanam ◽  
Krishna Raja Muthuraman ◽  
Vignesh Mariappan ◽  
Tamilarasu Kadhiravan ◽  
Narayanan Parameswaran ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Gas Chromatography ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Spectrometry Analysis ◽  
Chromatography Mass Spectrometry
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