Proteomics analysis reveals the mechanism associated with changes in fatty acids and volatile compounds of brown rice infested by Sitophilus oryzae Motschulsky

2022 ◽  
Vol 95 ◽  
pp. 101915
Author(s):  
Jiarong Hao ◽  
Xuemei Tian ◽  
Fenghua Wu ◽  
Hao Hu ◽  
Guoxin Zhou ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Volatile Compounds ◽  
Sitophilus Oryzae ◽  
Brown Rice ◽  
Proteomics Analysis

Investigation on the formations of volatile compounds, fatty acids, and γ-lactones in white and brown rice during fermentation

2018 ◽  
Vol 269 ◽  
pp. 347-354 ◽  
Author(s):  
Sang Mi Lee ◽  
Hyeon Ji Lim ◽  
Ji Won Chang ◽  
Byung-Serk Hurh ◽  
Young-Suk Kim
Keyword(s):  
Fatty Acids ◽  
Volatile Compounds ◽  
Brown Rice

Brown rice proteins as delivery system of phenolic and volatile compounds of raspberry juice

2021 ◽  
Author(s):  
Vanja Kelemen ◽  
Anita Pichler ◽  
Ivana Ivić ◽  
Ivana Buljeta ◽  
Josip Šimunović ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Delivery System ◽  
Brown Rice ◽  
Phenolic And Volatile Compounds

scholarly journals The effect of short-term storage temperature on the key headspace volatile compounds observed in Canadian faba bean flour

2021 ◽  
pp. 108201322199884
Author(s):  
Rami Akkad ◽  
Ereddad Kharraz ◽  
Jay Han ◽  
James D House ◽  
Jonathan M Curtis
Keyword(s):  
Fatty Acids ◽  
Volatile Compounds ◽  
Room Temperature ◽  
Unsaturated Fatty Acids ◽  
Solid Phase ◽  
Short Term ◽  
Bean Flour ◽  
Odour Activity Value ◽  
Short Term Storage ◽  
Term Storage

The odour emitted from the high-tannin fab bean flour ( Vicia faba var. minor), was characterized by headspace solid-phase microextraction/gas chromatography-mass spectrometry (HS-SPME/GC–MS). The relative odour activity value (ROAV) was used to monitor the changes in key volatile compounds in the flour during short-term storage at different temperature conditions. The key flavour compounds of freshly milled flour included hexanal, octanal, nonanal, decanal, 3-methylbutanal, phenyl acetaldehyde, (E)-2-nonenal, 1-hexanol, phenyl ethyl alcohol, 1-octen-3-ol, β-linalool, acetic acid, octanoic acid, and 3-methylbutyric acid; these are oxidative degradation products of unsaturated fatty acids and amino acids. Despite the low lipid content of faba beans, the abundances of aldehydes arising during room temperature storage greatly contributed to the flavour of the flour due to their very low odour thresholds. Two of the key volatiles responsible for beany flavour in flour (hexanal, nonanal) increased greatly after 2 weeks of storage at room temperature or under refrigerated conditions. These volatile oxidation products may arise as a result of enzymatic activity on unsaturated fatty acids, and was seen to be arrested by freezing the flour.

Isolation and Identification of Lipolytic Microorganisms Found on Rough Rice from Two Growing Areas

1978 ◽  
Vol 41 (1) ◽  
pp. 28-30 ◽  
Author(s):  
ANTHONY J. DeLUCCA ◽  
STEPHEN J. PLATING ◽  
ROBERT L. ORY
Keyword(s):  
Fatty Acids ◽  
Brown Rice ◽  
Plate Count ◽  
Isolation And Identification ◽  
Lipolytic Action ◽  
Rough Rice ◽  
Colony Forming Units ◽  
Rice Samples ◽  
Lipolytic Microorganisms ◽  
Rice Oil

Rice bran and whole brown rice are currently underutilized because free fatty acids are formed from rice oil during storage. Rough rice from two growing areas was tested for presence of lipolytic microorganisms that could release these fatty acids. Approximately 10% of the total bacterial plate count (4 × 106/g for Louisiana and 12 × 106/g for the Arkansas rice samples) were lipolytic. Upon testing, most were classified as nonsaccharolytic, alkali-producing pseudomonads. The average mold plate count for the Louisiana sample was 2 × 103 colony forming units (cfu)/g and 5 × 103 cfu/g for the Arkansas sample. All molds isolated showed various amounts of lipolytic action, as determined by the size of the lipolytic zone. The molds were generally isolated more from the Louisiana than from the Arkansas rice. Alternaria and Helminthosporium species, the most prevalent molds, were found in all samples.

scholarly journals Spice paprika volatiles as affected by different postharvest ripening treatments of red pepper (Capsicum annuum L.) variety aleva NK

2013 ◽  
pp. 75-86 ◽  
Author(s):  
Zarko Kevresan ◽  
Jasna Mastilovic ◽  
Snezana Sinadinovic-Fiser ◽  
Natasa Hrabovski ◽  
Tanja Radusin
Keyword(s):  
Fatty Acids ◽  
Volatile Compounds ◽  
Capsicum Annuum ◽  
Red Pepper ◽  
Maturity Stage ◽  
Post Harvest ◽  
Capsicum Annuum L ◽  
Aldehydes And Ketones ◽  
Postharvest Ripening

The influence of post-harvest ripening conditions of pepper Aleva NK picked in red maturity stage on the composition of volatiles in spice paprika was investigated by GCMS. The post-harvest ripening in the dark and under daylight was conducted under semicontrolled conditions for two weeks. The obtained chromatograms indicated that the aroma of investigated spice paprika consisted of a large number of volatile compounds regardless of the application and conditions of the post-harvest ripening. The main volatiles of the analyzed paprika samples were fatty acids and their esters, terpenes and terpenoides and aldehydes and ketones. The share of fatty acids and their esters decreased during the post-harvest ripening, and the ripening in the dark favored the decrease. The share of terpenes and terpenoides and the share of aldehydes and ketones in the total volatiles increased during the post-harvest ripening. The post-harvest ripening in the dark favored the increase of the share of terpenes and terpenoides, while the ripening under daylight favored the increase of the share of aldehydes and ketones.

scholarly journals Impact of Drying Method on the Evaluation of Fatty Acids and Their Derived Volatile Compounds in ‘Thompson Seedless’ Raisins

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 608 ◽  
Author(s):  
Dong Wang ◽  
Hafiz Umer Javed ◽  
Ying Shi ◽  
Safina Naz ◽  
Sajid Ali ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Principal Component Analysis ◽  
Volatile Compounds ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Principal Component ◽  
Heptanoic Acid ◽  
Drying Method ◽  
Thompson Seedless ◽  
Air Drying

Air- and sun-dried raisins from Thompson Seedless (TS) grapes were analyzed under GC/MS to evaluate fatty acids (FAs) and their derived volatile compounds, coming from unsaturated fatty acids oxidation. A total of 16 FAs were identified in TS raisins, including 10 saturated fatty acids (SFAs) and 6 unsaturated fatty acids (USFAs). The contents of C18:0, C15:0, and C16:0 among SFAs and C18:3, C18:2 and C18:1 in USFAs were significantly higher. Furthermore, USFAs such as C16:1 and C20:1 were only identified in air-dried raisins. The principal component analysis showed the increased content of FAs and FA-derived compounds were in air-dried and sun-dried raisins, respectively. Among FA-derived compounds, 2-pentyl furan, 3-octen-2-one, 1-hexanol and heptanoic acid were more potent. This study shows that air-drying is more favorable for the production of fatty acids (SFAs and USFAs), whereas sun-drying is more advantageous in terms of fatty acid-derived volatiles.

Effect of cooking pressure on phenolic compounds, gamma-aminobutyric acid, antioxidant activity and volatile compounds of brown rice

2021 ◽  
Vol 97 ◽  
pp. 103127
Author(s):  
Chengtao Yu ◽  
Ling Zhu ◽  
Hao Zhang ◽  
Shilin Bi ◽  
Gangcheng Wu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Volatile Compounds ◽  
Brown Rice ◽  
Aminobutyric Acid ◽  
Gamma Aminobutyric Acid

Effects of cooking methods on changes in fatty acids contents, lipid oxidation and volatile compounds of rabbit meat

LWT ◽  
2019 ◽  
Vol 110 ◽  
pp. 64-70 ◽  
Author(s):  
Ewa Rasinska ◽  
Jaroslawa Rutkowska ◽  
Ewa Czarniecka-Skubina ◽  
Krzysztof Tambor
Keyword(s):  
Fatty Acids ◽  
Lipid Oxidation ◽  
Volatile Compounds ◽  
Cooking Methods ◽  
Rabbit Meat
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