Results 21 to 30 of about 4,348,911 (323)

What was a mortarium used for? Organic residues and cultural change in Iron Age and Roman Britain. [PDF]

open access: yes, 2011
The Romans brought the mortarium to Britain in the first century AD, and there has long been speculation on its actual purpose. Using analysis of the residues trapped in the walls of these ‘kitchen blenders’ and comparing them with Iron Age and Roman ...
Cramp, Lucy J E   +2 more
core   +1 more source

Resin glycosides from Convolvulaceae plants [PDF]

open access: yesJournal of Natural Medicines, 2017
Resin glycosides are well known as purgative ingredients, which are characteristic of certain crude drugs such as Mexican Scammony Radix, Orizabae Tuber, and Jalapae Tuber, all of which originate from Convolvulaceae plants. Depending on their solubility in ether, these are roughly classified into two groups-jalapin (soluble) and convolvulin (insoluble).
openaire   +2 more sources

Preparation of Renewable Epoxy-Amine Resins With Tunable Thermo-Mechanical Properties, Wettability and Degradation Abilities From Lignocellulose- and Plant Oils-Derived Components

open access: yesFrontiers in Chemistry, 2019
One-hundred percent renewable triphenol—GTF—(glycerol trihydroferulate) and novel bisphenols—GDFx–(glycerol dihydroferulate) were prepared from lignocellulose-derived ferulic acid and vegetal oil components (fatty acids and glycerol) using highly ...
Louis Hollande   +5 more
semanticscholar   +1 more source

Biodiversity of the Indian Desert and it´s value [PDF]

open access: yes, 2001
The state of Rajasthan is situated between 23º3’ and 30º12’ N latitude and 69º30’ and 78º17’ E longitude . The total land area of the state is about 3,24,239 km²out of which about 1,98,100 km² is arid and the rest semi arid.
Kotia, Amit, Kumar, Ashwani
core   +2 more sources

Transition of plant resins from the biosphere to the lithosphere

open access: yesGeo&Bio, 2020
In the article the authors consider in detail the process of transition of plant resins from the biosphere to the lithosphere, characterize the conditions and paleogeographic situation of such transition, the formation of deposits of resin minerals and ...
Viktor M. Matsui, Uliana Z. Naumenko
doaj   +1 more source

How diverse is the chemistry and plant origin of Brazilian propolis?

open access: yesApidologie, 2021
Propolis is a honey bee product containing chiefly beeswax and resins originated from plant buds or exudates. Propolis resin exerts a diversity of biological activities, such as antitumoral, anti-inflammatory, antimicrobial, and defense of the hive ...
A. Salatino, M. L. Salatino, G. Negri
semanticscholar   +1 more source

Removal of disinfection by-product precursors by coagulation and an innovative suspended ion exchange process [PDF]

open access: yes, 2015
This investigation aimed to compare the disinfection by-product formation potentials (DBPFPs) of three UK surface waters (1 upland reservoir and 2 lowland rivers) with differing characteristics treated by (a) a full scale conventional process and (b ...
Jarvis, Peter   +4 more
core   +1 more source

Detection some active Compounds in the Leaves and Stems of Local Coriander Plant - Coriandrum sativum L.

open access: yesTikrit Journal of Pure Science, 2018
This research aimed at studying some of the chemical compounds of the leaves and stems of a local plant "Coriander". Inclusive  chemical Detection for the most important active chemical compounds that exist in this plant were carried out.
Raghad Z. Sulaiman, Yaseen M. Ahmed
doaj   +1 more source

The analysis of European lacquer : optimization of thermochemolysis temperature of natural resins [PDF]

open access: yes, 2016
In order to optimize chromatographic analysis of European lacquer, thermochemolysis temperature was evaluated for the analysis of natural resins. Five main ingredients of lacquer were studied: sandarac, mastic, colophony, Manila copal and Congo copal ...
A Heginbotham   +53 more
core   +2 more sources

Organic bioactive medicinal ingredients with antibacterial, anti-inflammatory and antioxidant properties [PDF]

open access: yesMedicamentul Veterinar, 2023
The formulation of cosmeceutical products containing plant and animal compunds is the current concern of many researchers in the pharmaceutical field and it is the subject of many specialized studies.
Cristina Dumitrache   +3 more
doaj  

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