A. Kamkar's research while affiliated with University of Tehran and other places

... Several researchers reported that the antioxidative properties in natural sources can be mostly due to their ingredients like phenolics, flavonoids and terpenoids [6]. The study of [65] reported that flavonoids are able to scavenge hydroxyl radicals, superoxide anions and lipid peroxyl radical while [39] reported the potent antioxidant activity for terpenoids. In this regard, [6] discussed that the presence and synergism of different antioxidants in an extract will determine the antioxidative properties of a specific extract or essential oil. ...

... This is common in regions where the winter months are long. (Kamkar, 2008;Mulunda et al.,2013;Rahimi et al., 2009). The distribution of AFM1 in the milk of the animal fed with contaminated food is not homogeneous in milk (Ayyildiz, 2012;Galvano et al., 1996). ...

... Therefore, they can prevent fungal growth and toxin secretion in feed. [28,29] The most important bacteria used as probiotics belong to bacterial genera including Lactobacillus, Streptococcus, Pseudomonas, Bifidobacteria and Burkholderia. The commercial strains can reduce AFM-1 contents in phosphate-buffered saline, milk, and yogurt. ...

... Reduction of lipids peroxidation, reduction of blood lipids, antioxidant, anti-leukemic, antibacterial effects, and therapeutic effect on inflammatory bowel disease are some of the pharmacological effects studied on plants of this genus. The compounds identified in pennyroyal are flavonoids, terpenes, saponins, benzyl and hydroisocoumarin, phenolic compounds, and sterols, many of which have been identified during chemotaxonomic studies of this plant [8]. ...

... In this study, L. plantarum CGMCC18980 was testified to have observably adsorption ratio of DBP, and the exopolysaccharide was probably an important factor of adsorption. Harmful substances are ubiquitous, like aflatoxin M1(AFM 1 ) contamination found in Iranian cheese and Portuguese yogurt (Kamkar 2006;Martins and Martins Fig. 4 FTIR absorption spectra of two strains before and after DBP adsorption: a L. plantarum CGMCC18980; b L. plantarum LP-115 2004), and subsequent research considered that LAB could effectively reduce the free AFM 1 content in liquid medium and yogurt processing (El Khoury et al. 2011). Biosorption is regarded as a promising method of the treatment and LAB belongs to GRAS so that it can be prepared into probiotic powders or applied to specific functional foods as a potential biological remover. ...

... Around 18 aflatoxin molecules have been identified (Wacoo, Wendiro, Vuzi, & Hawumba, 2014), among them aflatoxin B 1 is the most potent common form thus, the International Agency for Research on Cancer classified it as human carcinogen (group 1) (IARC Monograhs 1994). AFB1 1 can contaminate human food including cereals, corn, rice, oilseeds, tree nuts, and spices (Assaf et al., 2020;Marchese et al., 2018) and animal feed as well, including peanut meal, maize, and cottonseed meal (Kamkar, Khaniki, & SA, 2011). So upon consumption by dairy animals it gets absorbed into their gastrointestinal tracts and metabolized in their livers to produce aflatoxin M 1 , which in turn gets secreted into the milk of lactating mammals hence contaminating milk and dairy products (Marchese et al., 2018). ...

... Saberifard e al (2014) showed antimicrobial activity of Echium amoenum extracts using agar a disk diffusion method and determination of minimal inhibitory concentration values against Staphylococcus aureus ATCC 1112, Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 27853 (20). Herbal extracts as well as essential oils have antimicrobial effects, like garlic essential oil effects on Coliforms, Staphylococcus aureus and Psychrotrophic bacteria (21). Finally, we conclude that most of the results of this study are in good agreement with the traditional uses of the investigated plant. ...

... Their results confirm our findings. Mentha longifolia is considered as a prevalent plant in most areas of Iran (Kamkar et al., 2012). Insecticidal properties of M. longifolia oil have been demonstrated by other researchers, like fumigant toxicity and repellency on T. confusum (Saeidi and Moharramipour, 2013), contact activity against Sitophilus oryzae L. (Motamedi et al., 2011), and oviposition deterrency against Callosobrucus maculatus F. (Bruchidae) (Shakarami et al., 2010). ...

... Among them, the polymerase chain reaction (PCR) and multiplex PCR are obviously the most common technique used to identify the origin of the meat adulteration [13,14]. In the present study, we used the recently reported reverse line blot hybridization assay [15] to detect simultaneously different species-specific DNA in sausage. ...

... In different species of this genus, the EO content is more than 5%. Carvacrol, thymol, γ-terpinene, and borneol are the major oil compounds of S. hortensis (Kamkar et al., 2013). Chemical compositions of plants are dependent on various factors, such as part of the plant, harvesting time, extraction method, cultivar or genotype of the plant, geographic situation, storage conditions, and climate conditions (Hadian et al., 2010). ...