scholarly journals Antioxidants Profiling of By-Products from Eucalyptus Greenboards Manufacture

Antioxidants ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 263 ◽  
Author(s):  
Celeiro ◽  
Lamas ◽  
Arcas ◽  
Lores
Keyword(s):  
Mass Spectrometry ◽  
Bioactive Compounds ◽  
Solid Phase ◽  
Antioxidant Properties ◽  
Raw Material ◽  
Added Value ◽  
Gas Chromatography Mass Spectrometry ◽  
Eucalyptus Wood ◽  
Organic Extracts ◽  
By Products

Three different by-products from the Eucalyptus wood industry have been exhaustively characterized to find compounds with antioxidant properties. The industrial process to manufacture Eucalyptus greenboards is distinguished by using just wood and water, which converts the generated by-products in a highly attractive source of bioactive compounds that are originally in the raw material. The studied by-products were: the screw water, derived from the washing of the wood chips; the condensates, obtained after the evaporation and further condensation of the screw water; and finally, the concentrate of eucalyptus. For all of them and for their derived organic extracts, the total polyphenols content (TPC) and antioxidant activity (AA) have been evaluated. The chromatographic fingerprints, based on gas chromatography-mass spectrometry (GC-MS), and liquid chromatography-tandem mass spectrometry (LC-MS/MS) have been obtained to identify the main extractable organic wood components. Besides, solid-phase microextraction (SPME) has been employed to characterize the most volatile compounds. Significant differences were observed for the chromatographic profiles of the studied by-products. Up to 48 and 30 different compounds were identified in the screw water, and condensate by-products, respectively; whereas the highest number of compounds, up to 72, have been identified in the organic extracts derived from the concentrate of Eucalyptus, highlighting the presence of monoterpenes, sesquiterpenes, polyphenols, and other bioactive compounds with antioxidant properties. Therefore, these by-products could be exploited to obtain natural extracts with added value which could be reused in the food, cosmetic or pharmaceutical industry, reducing the environmental impact of the industrial activity.

Wood processing industry by-products as a source of natural bioactive compounds

2020 ◽  
pp. 0958305X2091993
Author(s):  
Maria Celeiro ◽  
J Pablo Lamas ◽  
Rosa Arcas ◽  
Marta Lores
Keyword(s):  
Mass Spectrometry ◽  
Chemical Composition ◽  
Solid Phase ◽  
Industrial Process ◽  
Added Value ◽  
Gas Chromatography Mass Spectrometry ◽  
Cherry Tree ◽  
Wood Processing ◽  
Liquid Chromatography Tandem Mass ◽  
By Products

The chemical composition of several by-products, chips, screw waters, and concentrates from a fiberboards manufacture green industrial process, which only employs wood and water, was deeply evaluated. The three by-products analyzed represent different steps of the industrial process. In addition, different types of wood: pine, walnut, chestnut, oak and cherry tree, were evaluated. For all of them, total polyphenols content, and antioxidant activity have been assessed, showing significant differences. To characterize the volatile compounds, an environmentally friendly technique, solid-phase microextraction has been employed. Besides, aqueous and generally recognized as safe organic extracts obtained from the by-products have been prepared, and their chromatographic fingerprint was obtained by gas chromatography-mass spectrometry and liquid chromatography-tandem mass spectrometry to identify extractable organic wood components. Significant differences were observed between the studied by-products and wood types. More than 30 different compounds were successfully identified in the screw waters, and concentrates, including terpenes, sesquiterpenes, or polyphenols. Regarding the obtained extracts, up to 30 compounds were identified in the chips, screw waters, and concentrate extracts, highlighting the presence of 13 polyphenols in the cherry tree chips and more than 20 compounds with interesting properties in the concentrate extracts. This work contributes to improve the knowledge about the chemical composition of several wood industry by-products, which could be exploited to obtain natural extracts with added value for their reuse in the food, cosmetic, or pharmaceutical industry, reducing also the environmental impact of the industrial activity.

scholarly journals Analyzing Gas Chromatography-Mass Spectrometry (GC-MS) of the Bioactive Compound of Javanese Long Pepper (Piper retrofractum Vahl.) Essential Oils

2020 ◽  
Vol 11 (4) ◽  
pp. 7005-7013
Author(s):  
Sulifah A. Hariani ◽  
Siti Zubaidah ◽  
Corebima AD
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oils ◽  
Bioactive Compounds ◽  
Human Life ◽  
Raw Material ◽  
Added Value ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Piper Retrofractum

Piper has an economically high commercial value because it is an aromatic compound that is widely used as a spice, an essential raw material for medicine, aromatic, antifungal, antiviral, insecticide and others. One species of Piper is Piper retrofractum Vahl.  This herb is useful for treating fever, hypotension, abdominal pain, beriberi, cholera, non-perspiration, and anthelmintic. The study of bioactive compounds from essential oils of P. retrofractum is crucial to be revealed, especially regarding variations in chemical compounds present in these oils because of the enormous benefits in human life. The purpose of this study was to characterize the composition of bioactive compounds from essential oils P. retrofractum from Kediri, East Java Province, Indonesia. The essential oil component of P. retrofractum distilled-fruit was then analyzed using GC-MS (Gas Chromatography-Mass Spectrometry) with GC-MS SHIMADZU QP2010 Plus specifications. The results of the GC-MS analysis showed that there were 28 compounds present in the fruit of P. retrofractum. The compounds consisted of terpenoids (monoterpenes, sesquiterpenes), fatty alcohols, alkene hydrocarbons, cyclic hydrocarbons, carbon alkene, and others. The research results of several researchers indicated that these compounds have great potential as bioactive compounds and useful in the pharmaceutical, health, cosmetics industries, and can utilize to increase the added value of food products.

scholarly journals Bioactive Compounds in Waste By-Products from Olive Oil Production: Applications and Structural Characterization by Mass Spectrometry Techniques

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1236
Author(s):  
Ramona Abbattista ◽  
Giovanni Ventura ◽  
Cosima Damiana Calvano ◽  
Tommaso R. I. Cataldi ◽  
Ilario Losito
Keyword(s):  
Mass Spectrometry ◽  
Olive Oil ◽  
Bioactive Compounds ◽  
Structural Information ◽  
Oil Production ◽  
Economic Problem ◽  
Added Value ◽  
Olive Leaves ◽  
Mediterranean Countries ◽  
By Products

In recent years, a remarkable increase in olive oil consumption has occurred worldwide, favoured by its organoleptic properties and the growing awareness of its health benefits. Currently, olive oil production represents an important economic income for Mediterranean countries, where roughly 98% of the world production is located. Both the cultivation of olive trees and the production of industrial and table olive oil generate huge amounts of solid wastes and dark liquid effluents, including olive leaves and pomace and olive oil mill wastewaters. Besides representing an economic problem for producers, these by-products also pose serious environmental concerns, thus their partial reuse, like that of all agronomical production residues, represents a goal to pursue. This aspect is particularly important since the cited by-products are rich in bioactive compounds, which, once extracted, may represent ingredients with remarkable added value for food, cosmetic and nutraceutical industries. Indeed, they contain considerable amounts of valuable organic acids, carbohydrates, proteins, fibers, and above all, phenolic compounds, that are variably distributed among the different wastes, depending on the employed production process of olive oils and table olives and agronomical practices. Yet, extraction and recovery of bioactive components from selected by-products constitute a critical issue for their rational valorization and detailed identification and quantification are mandatory. The most used analytical methods adopted to identify and quantify bioactive compounds in olive oil by-products are based on the coupling between gas- (GC) or liquid chromatography (LC) and mass spectrometry (MS), with MS being the most useful and successful detection tool for providing structural information. Without derivatization, LC-MS with electrospray (ESI) or atmospheric pressure chemical (APCI) ionization sources has become one of the most relevant and versatile instrumental platforms for identifying phenolic bioactive compounds. In this review, the major LC-MS accomplishments reported in the literature over the last two decades to investigate olive oil processing by-products, specifically olive leaves and pomace and olive oil mill wastewaters, are described, focusing on phenolics and related compounds.

scholarly journals Gas chromatography-mass spectrometry screening persistent organic pollutant in environmental monitoring of vital activity objects

2020 ◽  
Vol 62 (6) ◽  
pp. 89-97
Author(s):  
Igor M. Fitsev ◽  
◽  
Oksana V. Shlyamina ◽  
Aisylu Z. Mukharlyamova ◽  
Saniya L. Mokhtarova ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Food Product ◽  
Raw Material ◽  
Gas Chromatography Mass Spectrometry ◽  
Phase Extraction ◽  
Vital Activity ◽  
Animal Material

There are the results of the developed way of organochlorine pesticides (OCP) screening (OCP was classified by the Stockholm Convention (2001) as persistent organic pollutants (POP) by the gas chromatography–mass spectrometry (GC-MS)-detecting method for its simultaneous detection in vital activity objects (food, food raw material, food product, pathological animal material tissues, natural surface of waters) in this article. Preparation of the samples using solid-phase extraction (SPE) on cartridges «Diapak С18 Plus» or using the solid-phase extraction dispersion QuEChERS («quick», «easy», «affordable», «effective», «reliable», «safe») way (which contribute to high degree of detecting compound extraction) is preceding the GC/MS-detecting stage. Among the detecting ones in conditions of GCMS screening OCP are explored compounds that are included in POP «dirty» dozen: α-, β-, γ-isomers of hexachlorocyclohexane (HCH) and its biotransformation product – pentachlorocyclohexene, hexachlorobenzene (HCB), heptachlor, aldrine (HHDN), 2,2-bis(4-chlorophenyl)-1-chloroethylene (p,p'-DDMU), 1,1-dichloro-2,2-Bis(p-chlorophenyl)ethylene (4,4'-DDE), 1,1-dichloro-2,2-bis(4-chlorophenyl)ethane (4,4'-DDD), 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethane (4,4'-DDT). The necessity of controlling the content of CO3 (caused by its bioaccumulation in vital activity objects) takes part in trophic paths and caused by them violation of the normal microbiota of the human, agricultural animals and plants, connected with practical methods of realization chemical and biological risks monitoring are one of priority directions of the government policy in chemical and biological safety area. The developed way of GC-MS-detecting range OCP is applied for monitoring in food, food raw material, food product, pathological animal material tissues, natural surface of waters. Quantitative detecting the OCP range on a level of GC-MS method sensitivity spend in selective ions (basic and confirmatory ions respectively) registration mode. This method characterizes by limit of detection that don't exceed maximum permissible level (MPL) content OCP in objects of environmental monitoring with a standard deviation 3-4%.

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