scholarly journals Chemical Components of Fungus Comb from Indo-Malayan Termite Macrotermes gilvus Hagen Mound and Its Bioactivity against Wood-Staining Fungi

Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1591
Author(s):  
Dodi Nandika ◽  
Lina Karlinasari ◽  
Arinana Arinana ◽  
Irmanida Batubara ◽  
Putri Sari Sitanggang ◽  
...  
Keyword(s):  
High Performance ◽  
Relative Concentration ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components ◽  
Etoac Extract ◽  
Spectrometry Analysis ◽  
Chromatography Analysis ◽  
Aspergillus Foetidus ◽  
Fungus Comb

Recently, the architectural and physical properties of the fungus comb from subterranean termite Macrotermes gilvus Hagen (Isoptera: Termitidae) mounds had been studied and it is important to determine its chemical profile as well as to evaluate its anti-staining-fungi activity. The results showed that fungus comb of M. gilvus has a high crude ash (30.57%), fiber (25.46%), starch (7.76%), protein (5.80%, 5.53% amino acid), acid-insoluble ash (3.45%), and fat (0.73%). It also contained phenol hydroquinone, steroids, terpenoids, and saponin compounds. Seventeen amino acids were identified via high-performance liquid chromatography analysis, of which arginine, leucine, glutamate, and aspartic acid were the majority. According to gas chromatography-mass spectrometry analysis, the n-hexane extract consists of several types of fatty acid derivatives. Meanwhile, the ethyl acetate (EtOAc) extracts were primarily phenol groups with 1,2,3-propanetriol (glycerol) at the highest relative concentration. Four fungus-comb extracts (n-hexane, EtOAc, MeOH, and water) inhibited the Aspergillus foetidus fungus, with inhibition rates ranging from 24.17% to 100% and EtOAc extract as the most active extract. It appears that EtOAc extracts from the M. gilvus fungus comb can be considered an active ingredient source of novel organic fungicide in preventing wood-staining fungi attacks on susceptible wood.

scholarly journals Chemical Composition and Lipoxygenase Inhibitory Activity of the Essential Oil of Alstonia Angustiloba

2021 ◽  
Author(s):  
Wan Mohd Nuzul Hakimi Wan Salleh ◽  
Muhammad Helmi Nadri ◽  
Shamsul Khamis
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Inhibitory Activity ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components ◽  
Moderate Activity ◽  
Spectrometry Analysis ◽  
Ic50 Value ◽  
Total Oil

This study was aimed to investigate the chemica l compositions and lipoxygenase inhibitory activity of the essential oil from Alstonia angustiloba growing in Malaysia. The essential oils were obtained by hydrodistillation and fully characterized by gas chromatography and gas chromatography-mass spectrometry. Analysis of the A. angustiloba essential oil resulted in the identification of twenty-five chemical components, attributed 90.8% of the total oil. The most abundant components of A. angustiloba oil were linalool (21.2%), 1,8-cineole (16.8%), α-terpineol (9.5%), terpinene-4-ol (8.5%), β-caryophyllene (6.2%), and caryophyllene oxide (5.2%). The essential oil displayed moderate activity towards lipoxygenase activity with IC50 value of 45.8 μg/mL.

scholarly journals The effects of the cherry variety on the chemical and sensorial characteristics of cherry brandy

2011 ◽  
Vol 76 (9) ◽  
pp. 1219-1228 ◽  
Author(s):  
N. Nikicevic ◽  
M. Velickovic ◽  
M. Jadranin ◽  
I. Vuckovic ◽  
M. Novakovic ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Uv Detection ◽  
Ethyl Esters ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Spectrometry Analysis

The chemical and sensorial characteristics of cherry brandy produced from five cherry varieties (Oblacinska, Celery's 16, Rexle, Heiman's Ruby and Heiman's Conserve) grown in Serbia were studied. Gas chromatography and gas chromatography-mass spectrometry analysis of these distillates led to the identification of 32 components, including 20 esters, benzaldehyde, 6 terpenes and 5 acids. The ethyl esters of C8-C18 acids were the most abundant in all samples. The benzaldehyde content was quantified by high performance liquid chromatography with UV detection. The average benzaldehyde concentration in the samples ranged between 2.1 and 24.1 mg L-1. The total sensory scores of the cherry brandies ranged between 17.30 to 18.05, with the cherry brandy produced from the Celery's 16 variety receiving the highest score (18.05).

scholarly journals Potential of Tomato Pomace Extract as a Multifunction Inhibitor Corrosion of Mild Steel

2021 ◽  
Author(s):  
Viktoria Vorobyova
Keyword(s):  
Mild Steel ◽  
Corrosion Inhibitor ◽  
High Performance ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components ◽  
Accelerated Corrosion ◽  
Tomato Pomace ◽  
Chromatography Analysis ◽  
Accelerated Corrosion Tests ◽  
Weight Loss Method

Abstract The aim of this paper is to investigate tomato pomace extract (TPE) as multifunctional “green” vapor phase corrosion inhibitor for prevention of the atmospheric corrosion of mild steel and as corrosion inhibitor in neutral media of 0.5 M NaCl solution. The chemical profile of the TPE was analysed using gas chromatography mass spectrometry (GC-MS) and high performance liquid chromatography analysis (HPLC-DAD-MS). The major volatile constituents identified in tomato pomace extract were alcohols (12.5 %), fatty acids (23.78 %), aldehydes (41.6 %), ketones (8.65 %), and terpenoids (9.11 %). The predominant semi-volatile and high molecular weight chemical components in tomato pomace extract were phenolic acids and flavanols. The corrosion protection properties of the TPE as multifunctional corrosion inhibitor were studied using of accelerated corrosion tests (weight loss method) and electrochemical methods (polarization curves and linear polarization technique (LPR)). The mechanism of steel inhibition by TPE formulations was studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM) observations. The analysis confirmed that the growth of inhibitory properties is prolonged and corrosion rate is reduced after 40–48 h of exposure. Quantum-chemical calculations were used to predict the adsorption/inhibition properties of some of the main compounds of the extract.

scholarly journals A Tangy Twist Review on Hog-Plum: Spondias pinnata (L.f.) Kurz

2021 ◽  
Vol 21 (1) ◽  
pp. 1
Author(s):  
Sumanta Mondal ◽  
Kausik Bhar ◽  
Naresh Panigrahi ◽  
Prasenjit Mondal ◽  
Sridhar Nayak ◽  
...  
Keyword(s):  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Mass Spectrometry Analysis ◽  
Deciduous Tree ◽  
Gas Chromatography Mass Spectrometry ◽  
Chemical Components ◽  
Traditional Use ◽  
Spectrometry Analysis ◽  
Anti Cancer ◽  
Hog Plum

<em>Spondias pinnata</em> (L.f.) Kurz., belongs to the Anacardiaceae family, generally referred to as Indian Hog plum, a deciduous, glabrous tree with a healthy fruit to eat. Hog plum is a mild deciduous tree plant of high nutritional value, stubby calories and abundant in vegetable proteins, zinc, chitin, starch, vitamins and minerals. Traditional use of various parts of <em>S. pinnata</em> includes diarrhea, dysentery, stomach troubles, hyperacidity, wounds, sprain, rheumatism, gonorrhoea, tuberculosis, aphrodisiac, arrow poison antidote, dyspepsia, dysentery, ring worms, abscess painful joints, refrigerant, tonic, antiseptic, astringent, mental disorders, tuberculosis, vomiting and many more. A number of pharmacological activities were reported from several extracts of <em>S. pinnata</em> and its parts that include hypoglycemic, anti-cancer, ulcer-protective, antidiarrhoeal, anti-microbial, hepatoprotective, thrombolytic, anti-inflammatory, antiarthritic, analgesic, antipyretic, antihypertensive, anthelmintic, diuretic and laxative, anti-tuberculosis, cytotoxic, antioxidant, anti-hyperlipidemic, ischemia reperfusion injury and preconditioning of heart, anxiolytic, reduce side effects of chemotherapy, ameliorating, platelet aggregation inhibitory activity and acute and sub-chronic toxicity. A few phytochemicals were detailed on this plant. The chemical components of <em>S. pinnata</em> include different amino acids, carbohydrates, terpenoids, flavonoids, polysaccharides, steroids and so on. Various solvent extract and their gas chromatography-mass spectrometry analysis have confirmed the structures of a number of important phytoconstituents. Hence this review can be a good reference for researchers who would undertake further investigation about <em>S. pinnata</em>.

scholarly journals Secondary Metabolites of Flustra foliacea and Their Influence on Bacteria

2003 ◽  
Vol 69 (6) ◽  
pp. 3469-3475 ◽  
Author(s):  
Lars Peters ◽  
Gabriele M. K�nig ◽  
Anthony D. Wright ◽  
R�diger Pukall ◽  
Erko Stackebrandt ◽  
...  
Keyword(s):  
High Performance ◽  
Homoserine Lactone ◽  
Antagonistic Effect ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Bacterial Strains ◽  
Spectrometry Analysis ◽  
The North ◽  
Terrestrial Environments ◽  
Flustra Foliacea

ABSTRACT The North Sea bryozoan Flustra foliacea was investigated to determine its secondary metabolite content. Gas chromatography-mass spectrometry analysis of a dichloromethane extract of the bryozoan enabled 11 compounds to be identified. Preparative high-performance liquid chromatography of the extract resulted in the isolation of 10 brominated alkaloids (compounds 1 to 10) and one diterpene (compound 11). All of these compounds were tested to determine their activities in agar diffusion assays against bacteria derived from marine and terrestrial environments. Compounds 1, 3 to 7, 10, and 11 exhibited significant activities against one or more marine bacterial strains originally isolated from F. foliacea but only weak activities against all of the terrestrial bacteria. By using the biosensors Pseudomonas putida(pKR-C12), P. putida(pAS-C8), and Escherichia coli(pSB403) the antagonistic effect on N-acyl-homoserine lactone-dependent quorum-sensing systems was investigated. Compounds 8 and 10 caused reductions in the signal intensities in these bioassays ranging from 50 to 20% at a concentration of 20 μg/ml.

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