Glycolipids from Capsicum annuum

The component and fatty-acid compositions of glycolipids from seeds and pulp of Capsicum annuum (Solanaceae) were established. The dominant acid of seed galactolipids was found to be linoleic; of pulp, linolenic. The content of medium-chain acids 9:0-15:0 was greater in seed glycolipids than in the analgous component of pulp lipids.     

Lipids from Capsicum annuum Seeds

The composition of free and bound lipids from Capsicum annuum (Solanaceae) seeds was studied. Glycolipids, phospholipids, mono- and diacylglycerides, and free fatty acids were observed in the bound lipids.     

Lipids of Capsicum annuum Fruit Pulp

Lipids from fruit pulp of the sweet red pepper (Capsicum annuum, Solanaceae) were characterized. The principal components of the lipids from pepper fruit pulp were neutral lipids with predominance of triacylglycerines (55.8%). The polar lipids contained sulfoquinovosyldiacylglycerines and phosphotidylglycerines. The fatty-acid compositions of the neutral lipids, glycolipids, and phospholipids were determined.     

Physicochemical Properties and Composition of Lipids from Capsicum annuum Seeds

The mass of 1000Capsicum annuum(Solanaceae) seeds and their moisture, oil and ash contents were determined. The lipid composition and acid components were studied. Low-molecular-weight fatty acids, concentrated in the ester fraction, were detected     

Novel carotenoid 3,6-epoxides from red paprika,Capsicum annuum

The new carotenoid pigments (2),(3),(7),(9) and (10) have been isolated from red paprika; the 3,6-epoxy-5-hydroxy end group present in the pigments (2) and (9), hitherto has not been reported amongst natural carotenoids.     

Reisolation of Carotenoid 3,6-Epoxides from Red Paprika (Capsicum annuum)

Cucurbitaxanthin A (= (3S,5R,6R,3′R)-3,6-epoxy-5,6-dihydro-β,β- carotene-5,3′-diol; 5 ), cucurbitaxanthin B (= (3S,5R,6R,3′S,5′R,6′S)-3,6,5′, 6′-diepoxy-5,6,5′,6′-tetrahydro-β,β-carotene-5,3′-diol; 6 ), the epimeric cucurbitachromes 1 and 2 (= (3S,5R,6R,3′S,5′R,8′S)- and (3S,5R,6R,3′S,5′R,8′R)-3,6,5′, 8′-diepoxy-5,6,5′,6′-tetrahydro-β,β-carotene-5,3′-diol, resp.; 9/10 ), cycloviolaxanthin (= (3S,5R,6R,3′S,5′R,6′R)-3,6,3′, 6′-diepoxy-5,6,5′,6′-tetrahydro-β,κs-carotene-5,5′-diol; 8 ), and capsanthin 3,6-epoxide (= (3S,5R,6R,3′S,5′R)-3,6-epoxy-5,6-dihydro ?5,3′-dihydroxy-β,κ-caroten-6′-one; 7 ) were isolated from red spice paprika (Capsicum annuum var. longum) and characterized by their ¹H- and ¹³C-NMR, mass, and CD spectra.     

A New Apocarotenoid of Capsicum annuum var. fasciculatum

Chemistry of Natural Compounds - A new apocarotenoid, fasciculatol (1) was isolated from the stems of Capsicum annuum var. fasciculatum (Sturtev.) Irish (Solanaceae). The structure of the new...     

Characterization of Capsicum annuum Recombinant α- and β-Tubulin

There are several conditions which might modulate polymerization to produce polymers having normal lattice structure. In the absence of 1 mM MgCl₂ the assembly was reduced by 36% in Capsicum annuum tubulin (CAnm tubulin). There was no significant difference in the final assembly formation in the presence of 5% to 10% glycerol. However, nucleation rate was slow and apparent study state was achieved lately in the presence of 10% glycerol. Taxol at 100 μM concentration increased 23% tubulin assembly. One millimolar CaCl₂, ≥1% dimethyl sulfoxide (DMSO) and physiologically low temperature reduced CAnm tubulin assembly. A value of 0.089 mg/ml was obtained as critical concentration for polymerization. Benomyl significantly reduced the number of cysteine residues accessible to 5,5’-dithiobis-(2-nitrobenzoic acid); there were 4.77?±?0.21 and 3.49?±?0.35 residues accessible per tubulin dimer in the presence of 50 and 100 μM benomyl respectively.     

Breakdown of Chlorophyll: A Fluorescent Chlorophyll Catabolite from Sweet Pepper (Capsicum annuum)

The primary fluorescent chlorophyll catabolite 1 (Ca‐FCC‐2) from sweet pepper (Capsicum annuum) has similar optical properties, but is slightly less polar than the primary FCC (pFCC; 2 ) from senescent cotyledons of oilseed rape (Brassica napus). Ca‐FCC‐2 was prepared from pheophorbide a using an enzyme extract from ripe C. annuum chromoplasts. The catabolite Ca‐FCC‐2 ( 1 ) could be determined from fast‐atom‐bombardment (FAB) mass spectra to be an isomer of pFCC ( 2 ). The constitution of Ca‐FCC‐2 was determined by homo‐ and heteronuclear magnetic‐resonance experiments and was found to be identical to that of pFCC. Further 2D‐homonuclear spectra of Ca‐FCC‐2 revealed it to differ from pFCC by the configuration at the methine atom C(1), whose configuration results from the action of red chlorophyll catabolite reductase (RCCR). The occurrence of two primary FCCs that are epimeric at C(1) provides a structural basis for the recent observation of two types of RCCRs among higher plants.     

Application of TLC and GC—MS to the Detection of Capsaicin from Hot Peppers (Capsicum annuum)

JPC – Journal of Planar Chromatography – Modern TLC - Capsaicin was extracted from red hot pepper (Capsicum annuum) fruits and from commercial red hot pepper powder and separated on...     

Investigation of a CO2 extract of the fruit of Capsicum annuum

Summary The composition of a CO₂ extract of the fruit of the pepperCapsicum annuum L. with respect to the main classes of compounds has been studied. A method has been developed for the extraction and quantitative determination of capsaicine.Krasnodar Scientific-Research Institute of the Food Industry. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 481–485, July–August, 1974.     

Antioxidant activities and bioactive compounds of five Jalopeno peppers (Capsicum annuum) cultivars

The present study was designed to evaluate the contents of different antioxidants compounds and their antioxidant activities in Jalopeno peppers (Capsicum annuum) cultivars (El Dorido, Grande, Tula, Sayula and El Rey) extracts. Free radical scavenging activity of Grande was recorded as high as 87% followed by El Dorido (83%). Results of reducing power (Fe³⁺ to Fe²⁺) showed that Grande (0.85%) and El Dorido (0.81%) fruit extract absorbance value were close to synthetic antioxidant BHT (0. 97%) obtained at100 μg/mL. The results showed that total phenolic content of El Dorido and Grande were significantly higher compared to other Jalapeno pepper. Results indicated strong and positive correlation between antioxidant activity and carotenoids content (r = 0.75), vitamin C (r = 0.78) and total capsaicinoids (r = 0.84), respectively. The results of the antioxidant activity assays showed that the El Dorido and Grande had strongest antioxidant activity compared to other peppers cultivars in this study.