Results 21 to 30 of about 75,017 (303)

Variations in caffeine and chlorogenic acid contents of coffees: what are we drinking? [PDF]

open access: yes, 2014
The effect of roasting of coffee beans and the extraction of ground coffee with different volumes of hot pressurised water on the caffeine and the total caffeoylquinic acids (CQAs) content of the resultant beverages was investigated.
Alan Crozier   +6 more
core   +1 more source

Study on the effect of microwave roasting pretreatment on nickel extraction from nickel-containing residue using sulfuric acid

open access: yesGreen Processing and Synthesis, 2021
Various means have been proposed to solve problems such as high ash content and complex composition in the recycling of nickel-containing residue produced by battery manufacturing enterprises.
Su Guang   +6 more
doaj   +1 more source

Effect of ultrasound pre-treatment on the physical, microbiological, and antioxidant properties of calçots [PDF]

open access: yes, 2018
The effect of ultrasound (US) treatment (40 kHz, 250 W) for 0, 10,25 and 45 min on the physical and microbiological quality, total antioxidant capacity (TAC) and total phenolic content (TPC) of calçots (Allium cepaL.) was evaluated.
Abadias i Sero, Mª Isabel   +5 more
core   +3 more sources

Pengaruh Jenis dan Lama Penyangraian pada Mutu Kopi Robusta (Coffea robusta)

open access: yesJurnal Agro Industri Perkebunan, 2016
The process of roasting the coffee beans will produce a good quality of taste and aroma. To conduct this research activity in the roasting researchers used a minimalist roaster machine (mini roaster).
Bukhori Thomas Edvan   +2 more
doaj   +1 more source

Roasting treatments affect oil extraction rate, fatty acids, oxidative stability, antioxidant activity, and flavor of walnut oil

open access: yesFrontiers in Nutrition, 2023
IntroductionThe quality of pressed walnut oil can be improved by moderate roasting treatment.MethodsThis study compared physicochemical characteristics and antioxidant ability of walnut oils pressed from differently roasted pretreated walnuts, analyzed ...
Huankang Li   +8 more
doaj   +1 more source

Recent Trends in Metabolomics by NMR Spectroscopy

open access: yesAngewandte Chemie, EarlyView.
AI tools were applied to analyze more than 5 000 publications indexed in Scopus (2018–2025), identifying key trends and research directions in NMR‐based metabolomics. The artificial intelligence‐assisted workflow classified papers into six main fields of application, human health, food and nutrition, veterinary science, plants, environment, and ...
Giorgio Di Paco   +6 more
wiley   +2 more sources

Effects of roasting on kernel peroxide value, free fatty acid, fatty acid composition and crude protein content.

open access: yesPLoS ONE, 2017
Roasting nuts may alter their chemical composition leading to changes in their health benefits. However, the presence of testa may alleviate the negative effects of thermal treatments.
Shahla Hosseini Bai   +10 more
doaj   +1 more source

Coffee roasting acoustics [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2014
Cracking sounds emitted by coffee beans during the roasting process were recorded and analyzed to investigate the potential of using the sounds as the basis for an automated roast monitoring technique. Three parameters were found that could be exploited.
openaire   +2 more sources

Design and construction of coffee roasting machine with rounding cylinder tube using electric heat source

open access: yesResearch in Agricultural Engineering, 2023
The purpose of this research is  to design a rounding cylinder tube on a coffee roaster using an electric heating element that will be used to roast coffee.
Andriani Lubis   +3 more
doaj   +1 more source

Impact of consumer behavior on furan and furan-derivative exposure during coffee consumption : a comparison between brewing methods and drinking preferences [PDF]

open access: yes, 2018
This study examined the influence of consumer behavior on furan, 2-methylfuran, 3-methylfuran, 2,5-dimethylfuran and 2,3-dimethylfuran exposure in coffee.
Rahn, Anja, Yeretzian, Chahan
core   +1 more source

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