scholarly journals Characterization of the Lipid Oxidation Process of Robusta Green Coffee Beans and Shelf Life Prediction during Accelerated Storage

Molecules ◽  
2020 ◽  
Vol 25 (5) ◽  
pp. 1157 ◽  
Author(s):  
Sha Cong ◽  
Wenjiang Dong ◽  
Jianping Zhao ◽  
Rongsuo Hu ◽  
Yuzhou Long ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid Oxidation ◽  
Shelf Life ◽  
Oxidation Process ◽  
Fatty Acid Content ◽  
Green Coffee ◽  
Green Coffee Beans ◽  
Accelerated Storage ◽  
Coffee Beans ◽  
C 50

The lipid oxidation process of Robusta green coffee beans was characterized during accelerated storage for 20 days at 40 °C, 50 °C, and 60 °C. The conventional oxidation indexes and fatty acid compositions were evaluated, and the shelf life of the green coffee beans was predicted using the Arrhenius model. The acid value, iodine value, peroxide value, total oxidation value, thiobarbituric acid reactive substances, and free fatty acid content increased throughout storage, while the moisture content, p-anisidine value, and unsaturated fatty acid content decreased, which suggests that lipid oxidation occurred during accelerated storage. The predicted shelf life of green coffee bean samples were 57.39 days, 44.44 days, and 23.12 days when stored at 40 °C, 50 °C, and 60 °C, respectively. This study provided scientific evidence of the impact of lipid oxidation on the loss of quality during the accelerated storage of green coffee beans.

Effect of Fungal Infection on Fatty Acid Contents of the Stored Green Coffee Beans

2013 ◽  
Vol 8 (2) ◽  
pp. 114-123
Author(s):  
Amira Hassan Abdulla Al-Abdalal ◽  
Amal Abdulaziz Al-Juraifa
Keyword(s):  
Fatty Acid ◽  
Fungal Infection ◽  
Green Coffee ◽  
Green Coffee Beans ◽  
Coffee Beans

scholarly journals 97 Impact of diet on shelf life of beef steaks

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 55-55
Author(s):  
Nicolas Bland ◽  
Felipe Ribeiro ◽  
Nicolas Herrera ◽  
Kellen Hart ◽  
Morgan Henriott ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid Oxidation ◽  
Shelf Life ◽  
Fatty Acid Content ◽  
Selection Criterion ◽  
Thiobarbituric Acid ◽  
Experimental Unit ◽  
Beef Steaks ◽  
Retail Display ◽  
Tbars Values

Abstract This research was conducted to evaluate the effects of feeding different types of processed corn, with or without distiller grains, on shelf life of beef steaks. Steers (n = 240) were finished on Dry Rolled Corn (DRC), DRC + 30% Dried Distillers Grains (DDGS), Steam Flaked Corn (SFC), or SFC + 30% DDGS. Cattle were fed 10 per pen. Only pens with upper 2/3 Choice and Select-grade carcasses were sampled, with a goal of two (and a minimum of one) of each grade per pen. Three pens per treatment met the selection criterion and 36 carcasses were chosen (21 upper 2/3 Choice and 15 Select). Pen was considered the experimental unit. Both strip loins were collected from each carcass, halved, and aged for 2, 9, 16, or 23 d. After aging, steaks were placed under retail display for 7 d. Discoloration and objective color (L*, a*, and b*) were determined daily and lipid oxidation (thiobarbituric acid reactive substances; TBARS) was measured after 0 and 7 d of retail display. Fatty acid profile of the lean was obtained. Minimal to no impacts of grade on color and lipid oxidation were found (P > 0.05). Steaks from cattle fed DRC were statistically or numerically lowest for discoloration and C18:2 (linoleic acid) and highest for redness compared to the other treatments (P < 0.05). Conversely, steaks from cattle fed SFC+DDGS had the most C18:2 and the worst (least desirable) values for discoloration and redness toward the end of retail display (P < 0.05). Steaks from cattle fed DRC had the lowest TBARS values, while steaks from cattle fed SFC+DDGS had the highest TBARS values (P < 0.05). These data suggest that steaks from cattle fed SFC+DDGS oxidize, discolor, and lose redness more quickly under retail display than steaks from cattle fed DRC, likely due to changes in fatty acid content.

Effect of post-harvest drying process on chlorogenic acids, antioxidant activities and CIE-Lab color of Thai Arabica green coffee beans

2021 ◽  
pp. 130504
Author(s):  
Fareeya Kulapichitr ◽  
Chaleeda Borompichaichartkul ◽  
Mingchih Fang ◽  
Inthawoot Suppavorasatit ◽  
Keith R. Cadwallader
Keyword(s):  
Antioxidant Activities ◽  
Green Coffee ◽  
Chlorogenic Acids ◽  
Drying Process ◽  
Post Harvest ◽  
Green Coffee Beans ◽  
Coffee Beans ◽  
Cie Lab

Evaluation of the chemical constituents, antioxidant and enzyme inhibitory activities of six Yemeni green coffee beans varieties

2022 ◽  
pp. 101552
Author(s):  
Ammar Mohammed Ahmed Ali ◽  
Sakina Yagi ◽  
Ahmed A. Qahtan ◽  
Abdurrahman A. Alatar ◽  
Simone Angeloni ◽  
...  
Keyword(s):  
Chemical Constituents ◽  
Green Coffee ◽  
Green Coffee Beans ◽  
Coffee Beans ◽  
Inhibitory Activities

4-O-feruloylquinic acid from green coffee beans

1986 ◽  
Vol 25 (6) ◽  
pp. 1496-1497 ◽  
Author(s):  
Hideko Morishita ◽  
Hideo Iwahashi ◽  
Ryo Kido
Keyword(s):  
Green Coffee ◽  
Green Coffee Beans ◽  
Coffee Beans

scholarly journals Structure expansion of green coffee beans using instantaneous controlled pressure drop process

2008 ◽  
Vol 9 (4) ◽  
pp. 534-541 ◽  
Author(s):  
Ibtisam M. Kamal ◽  
V. Sobolik ◽  
Magdalena Kristiawan ◽  
Sabah M. Mounir ◽  
K. Allaf
Keyword(s):  
Pressure Drop ◽  
Green Coffee ◽  
Green Coffee Beans ◽  
Coffee Beans

scholarly journals ANTIPROLIFERATION ACTIVITIES OF ETHANOL EXTRACT OF ROBUSTA LAMPUNG GREEN COFFEE SEEDS ON DOG TUMOR LINE CELLS

2021 ◽  
Vol 22 (1) ◽  
pp. 133-140
Author(s):  
Farra Sasmita ◽  
Ietje Wientarsih ◽  
Bayu Febram Prasetyo ◽  
Bambang Pontjo Priosoeryanto
Keyword(s):  
Tumor Cells ◽  
Ethanol Extract ◽  
Positive Control ◽  
Screening Methods ◽  
Green Coffee ◽  
Normal Cells ◽  
Green Coffee Beans ◽  
Coffee Beans ◽  
Dpph Method ◽  
Cytotoxicity Effects

This study aim at determining the activity of ethanol extract of Robusta green coffee beans as an antiproliferation agent in MCA-B1, MCM-B2, and Vero normal cell lines as a control. Ethanol extract of Robusta green coffee beans was obtained by maceration method, bioactive compounds in the extract were tested by phytochemical screening methods, testing levels of antioxidants were tested by 2,2-diphenyl-1-picrylhydrazyl (DPPH) method, cytotoxicity effects (LC50) were tested by the method Brine Shrimp Lethallity Test (BSLT) and antiproliferation activity were carried out by counting the number of cells after being tested with several extract concentrations namely 100, 250, 400, 550, 700 and 850 ppm and doxorubicin as a positive control with a concentration of 100 ppm. The results showed that the ethanol extract of Robusta green coffee beans contained flavonoids and tannins, had very strong antioxidant levels with IC50 values of 40.9923 ppm, cytotoxicity effects obtained LC50 values of 430.64 ppm, and the highest antiproliferation activity was achieved at a concentration of 850 ppm at 69.58 % in MCM-B2 tumor cells, 60.46% in MCA-B1 tumor cells, and 14.2% in Vero normal cells. Based on the results, the ethanol extract of Robusta Lampung green coffee beans has antiproliferation activity on the test tumor cells and is relatively non-toxic to normal cells.

Scope and limitations of principal component analysis of high resolution LC-TOF-MS data: the analysis of the chlorogenic acid fraction in green coffee beans as a case study

2011 ◽  
Vol 3 (1) ◽  
pp. 144-155 ◽  
Author(s):  
Nikolai Kuhnert ◽  
Rakesh Jaiswal ◽  
Pinkie Eravuchira ◽  
Rasha M. El-Abassy ◽  
Bernd von der Kammer ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
High Resolution ◽  
Chlorogenic Acid ◽  
Principal Component ◽  
Green Coffee ◽  
Acid Fraction ◽  
Green Coffee Beans ◽  
Coffee Beans ◽  
Tof Ms
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