scholarly journals Bioactive β-Carbolines Harman and Norharman in Sesame Seed Oils in China

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 402
Author(s):  
Wei Liu ◽  
Zhaoyu Yang ◽  
Lili Shi ◽  
Yun Li

The β-carbolines in our diet, mainly including harman and norharman, are a group of biologically active, naturally occurring plant-derived alkaloids. Fragrant sesame seed oil is one of the most popular flavor edible oils in China. Considering that sesame seeds are roasted at 200–240 °C during the processing of flavor sesame seed oils, it is meaningful to investigate the levels of β-carboline compounds in various sesame seed oils. In this work, the levels of β-carbolines (harman and norharman) in different types of sesame seed oils in China (e.g., pressed fragrant sesame oil, ground fragrant sesame oil) have been determined systematically. The results showed that the levels of total β-carbolines in pressed fragrant sesame oils (700.5~2423.2 μg/kg) were higher than that in ground fragrant sesame oils (660.4~1171.7 μg/kg). Roasting sesame seeds at high temperatures (200–240 °C) led to higher levels of β-carbolines (660~2400 μg/kg) in fragrant sesame seed oils. In addition, the loss of tryptophan might be attributed to the formation of β-carbolines in sesame seeds during the roasting process. In general, fragrant sesame seed oils (pressed fragrant sesame oils, ground fragrant sesame oils) contain higher levels of β-carbolines due to the formation of harman and norharman during the roasting sesame seed process.

2015 ◽  
Vol 92 (11-12) ◽  
pp. 1725-1733 ◽  
Author(s):  
Weiwei Cheng ◽  
Guoqin Liu ◽  
Xuede Wang ◽  
Xinqi Liu ◽  
Bingge Liu

2021 ◽  
pp. 1412-1419
Author(s):  
Adamou Akourki ◽  
Arantxa Echegaray ◽  
Orlando Perdomo ◽  
Nicolas Angel Escartin ◽  
Marta Guillén

Background and Aim: Essential oils found frequently in plants are well known for their activities against bacteria, viruses, and fungi, and antioxidant properties. This study aimed to analyze egg yolk replacement by seed oils of Gossypium spp. (cotton), Balanites aegyptiaca (desert date), and Sesamum indicum (sesame) in semen extender, on ram sperm quality chilled at 4°C and frozen-thawed. Materials and Methods: Ejaculates were collected from adult rams and refrigerated at 4°C in a Tris-based extender containing 1.25%, 2.5%, 5%, and 10% of Gossypium spp., B. aegyptiaca, and S. indicum seed oils, to evaluate which were the two best extenders for comparison with BIOXcell, a commercial extender for deep freezing ram semen. Results: The data showed that sperm movements analyzed by the CASA system were faster in extenders supplemented with 2.5-5% of cottonseed oil and 1.25-10% of sesame oil, whereas in the extender containing B. aegyptiaca oil, all seminal parameters studied had the worst values. During the sperm-freezing process, 5% of cottonseed oil and 5% sesame seed oil were selected from the first study, with sesame oil reaching the best sperm quality. Thus, sperm motility and velocity were 44.14±13.99%, 24.44±12.6%, and 25.92±11.50%; and 20.26±9.56%, 8.76±6.38%, and 9.42±5.40%, respectively, for sesame oil, cottonseed oil, and BIOXcell. Conclusion: In summary, 2.5-10% of cottonseed oil and 1.25-10% of sesame seed oil can replace egg yolk in a Tris–egg yolk–based extender. Moreover, a Tris-based extender supplemented with 5% sesame seed oil could be an alternative for deep freezing ram semen, even though these results need to be confirmed with semen collected from rams with appropriate sexual rest.


2019 ◽  
Vol 31 (12) ◽  
pp. 3004-3008
Author(s):  
A.A. El-Refai ◽  
M.M. Rabie ◽  
Rania E. El-Gammal ◽  
W.A. Al-Saban

This work aims to study the effect of using nanoemulsion particles on the stability of sesame seed oil emulsion. During the roasting process of sesame seeds (Sohage-1), some physico-chemical properties of sesame seeds and its oil were determined. The moisture, protein and fiber contents were decreased whereas oil, ash and arbohydrates contents were increased. Sesame oil was extracted from roasted sesame seeds using mechanical pressing; some physico-chemical properties for extracted oil were determined. Results indicated that colour, acid value, free fatty acids (%), peroxide and hydrolysis values were increased, while saponification value was decreased in sesame oil. Also traditional and nanoemulsions form of sesame oil were prepared. Characterization of these emulsions particles was conducted using zeta potential and transmission electron microscope (TEM). The results also indicated that small droplet size of nanoemulsion particles being 26.28 nm in emulsion which prepared by using nano-technique as compared with those of 638.8 nm in traditional emulsion type and low polydispersity index (PDI) was nanoemulsion particles 0.266. This lead to more uniformity in droplet size thus could improve the stability of emulsion system. The TEM results of nanoemulsion particles of sesame oil showed that spherical droplets and nearly similarity in shape in nanoemulsion in compared with semi-spherical and varied particles size in traditional one. Creaming index, centrifugation test, conductivity and freeze-thaw cycles were used to evaluate all type of prepared emulsion stability. The nanoemulsion particles of sesame oil were found to be more stable than those of traditional one. These results indicated that the nanoemulsion process could increase the stability of prepared emulsion. Thus, using of nanoemulsion technique could be used as commercial way to enhance the stability of prepared emulsion.


2021 ◽  
Vol 13 (3) ◽  
pp. 820-829
Author(s):  
Meenakshi Garg ◽  
Surabhi Wason ◽  
Prem Lata Meena ◽  
Rajni Chopra ◽  
Susmita Dey Sadhu ◽  
...  

Most common cooking oil, such as soybean oil, can not be used for high-temperature applications, as they are highly susceptible to oxidation. Sesame seed oil rich in natural antioxidants provides high oxidative stability. Therefore, blending sesame oil with soybean oil offer improved oxidative stability. This study aims to determine the effect of frying on the physicochemical properties of sesame and soyabean oil blend. Soybean oil (SO) was blended with sesame seed oil (SSO) in the ratio of A-40:60, B-60:40 and C-50:50 so as to enhance its market acceptability. The changes occurring in soybean and sesame seed oil blend during repeated frying cycles were monitored. The parameters assessed were: Refractive index, specific gravity, viscosity, saponification value, free fatty acid (FFA) , peroxide value, and acid value. Fresh and fried oil blends were also characterised by Fourier Transform Infrared Spectroscopy (FTIR). No significant changes were observed for refractive index and specific gravity values in oil blends. Viscosity of blend B blend was the least, making it desirable for cooking purposes. However, FFA, acid value and peroxide value increased after each frying cycle. The increment of FFA and AV was found low for blend A (10% and 10%,) than blend B (27%,13%) and blend C (13%,13%). The peroxide value of all samples was within the acceptable range. The results of the present study definitely indicated that blending sesame oil with soybean oil could produce an oil blend which is economically feasible and provide desirable physicochemical properties for cooking purposes.


2011 ◽  
Vol 30 (3_suppl) ◽  
pp. 40S-53S ◽  
Author(s):  
Wilbur Johnson ◽  
Wilma F. Bergfeld ◽  
Donald V. Belsito ◽  
Ronald A. Hill ◽  
Curtis D. Klaassen ◽  
...  

Sesamum indicum (sesame) seed oil and related cosmetic ingredients are derived from Sesamum indicum. Sesamum indicum (sesame) seed oil, sesamum indicum (sesame) oil unsaponifiables, and hydrogenated sesame seed oil function as conditioning agents. Sodium sesameseedate functions as a cleansing agent, emulsifying agent, and a nonaqueous viscosity increasing agent. These ingredients are neither skin irritants, sensitizers, teratogens, nor carcinogens at exposures that would result from cosmetic use. Both animal and human data relevant to the cosmetic use of these ingredients were reviewed. The CIR Expert Panel concluded that these ingredients are safe in the present practices of use and concentration as described in this safety assessment.


Foods ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 989
Author(s):  
Tae Jin Kim ◽  
Jeong Gon Park ◽  
Hyun Young Kim ◽  
Sun-Hwa Ha ◽  
Bumkyu Lee ◽  
...  

Perilla and sesame are traditional sources of edible oils in Asian and African countries. In addition, perilla and sesame seeds are rich sources of health-promoting compounds, such as fatty acids, tocopherols, phytosterols and policosanols. Thus, developing a method to determine the geographic origin of these seeds is important for ensuring authenticity, safety and traceability and to prevent cheating. We aimed to develop a discriminatory predictive model for determining the geographic origin of perilla and sesame seeds using comprehensive metabolite profiling coupled with chemometrics. The orthogonal partial least squares-discriminant analysis models were well established with good validation values (Q2 = 0.761 to 0.799). Perilla and sesame seed samples used in this study showed a clear separation between Korea and China as geographic origins in our predictive models. We found that glycolic acid could be a potential biomarker for perilla seeds and proline and glycine for sesame seeds. Our findings provide a comprehensive quality assessment of perilla and sesame seeds. We believe that our models can be used for regional authentication of perilla and sesame seeds cultivated in diverse geographic regions.


2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Paweena Ekkaphan ◽  
Sarintip Sooksai ◽  
Nuanphun Chantarasiri ◽  
Amorn Petsom

The preparation of water-blown rigid polyurethane (RPUR) foams using bio-based polyols from sesame seed oil and pumpkin seed oil has been reported. Polyols synthesis involved two steps, namely, hydroxylation and alcoholysis reaction. FTIR, NMR, and ESI-MS were used to monitor the process of the synthesized polyols and their physicochemical properties were determined. The resulting polyols have OH number in the range of 340–351 mg KOH/g. RPUR foams blown with water were produced from the reaction of biopolyols with commercial polymeric methylene diphenyl diisocyanate (PMDI). The proper PUR formulations can be manipulated to produce the desired material applications. These seed oil-based RPUR foams exhibited relatively high compressive strength (237.7–240.2 kPa) with the density in the range of 40–45 kg/m3. Additionally, the cell foam morphology investigated by scanning electron microscope indicated that their cellular structure presented mostly polygonal closed cells. The experimental results demonstrate that these bio-based polyols can be used as an alternative starting material for RPUR production.


2020 ◽  
Vol 21 (1&2) ◽  
pp. 19-29
Author(s):  
Saeed Alshahrani ◽  
Aseel Abid Al Sreaya ◽  
Mohammad Yahya Mashyakhi ◽  
Saad Alqahtani ◽  
Sivagurunathan Moni Sivakumar ◽  
...  

Bacterial infection and its resistance is a major health issue that affects millions of people throughout the world. There is always a need to search forth new and safest drug from natural resources to fight these challenges. Sesame seed essential oil is a rich source of protein with high medicinal value since the ancient time peoples are using for several remedies in Saudi Arabia.Therefore, the current study is aimed to discover the potential activity of the locally available sesame oil for antibacterial action based on ethnobotanical knowledge and traditional utilization as a therapeutic agent to treat several kinds of health problem in Saudi culture. Gas chromatography / mass spectrometry (GC/MS) analysis of sesame essential oil extracted from locally available sesame seeds represented 39 different chemical compounds. Sesamin and sesamol were the principal components alongwith fatty acids and triglycerides. Results indicated that the locally available sesame oil was found rich in sesamin contents (24.45%). The spectrum of antibacterial effect of sesame seed essential oil was exhibited significantly against Escherichia coli followed by Staphylococcus aureus, Streptococcus pyogenes, Klebsiella pneumoniae and Pseudomonas aeruginosa respectively. The results indicate that sesame oil was found most effective against three bacteria i.e. E. coli, S. aureus and S. pyogenes.


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