Antimicrobial Activity of Hibiscus sabdariffa L.
                    (Roselle) Powder against Food-Borne Pathogens Present in Dairy Products:
                    Preliminary Study

Lim, Hyun-Woo; Seo, Kun‐Ho; Chon, Jung‐Whan; Song, Kwang‐Young

doi:10.22424/jdsb.2020.38.1.37

Cited by 8 publications

(7 citation statements)

References 23 publications

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“…Nonetheless, all accessions, except for the four aberrant accessions, tended to exhibit a higher antioxidant activity measured by the DPPH assay than that measured by the ABTS activity assay. The antioxidant and bioactive properties of anthocyanins have also been linked to health benefits such as anti-cancer, anti-inflammatory, and anti-diabetic activities [ 30 , 31 , 32 , 33 , 34 ]. Consequently, these results are consistent with previous studies, indicating that anthocyanin compounds were the main contributors to the antioxidant activity of H. acetosella .…”

Section: Resultsmentioning

confidence: 99%

“…For the S. aureus bacteria, all accessions exhibited a basal antibacterial activity level (12 mm), with PI500758 and PI500764 exhibiting an increased level of antibacterial activity (13.67 mm), but the Gram-negative ( P. aeruginosa ) bacteria exhibited a wider range of levels of antibacterial activity ( Table 3 ). These antibacterial activities were exhibited similar levels against both Gram-positive and Gram-negative bacteria in H. sabdariffa [ 4 , 31 , 35 ]. The present study first confirmed the presence of antibacterial activity against two bacteria among the phenolic extracts of the 18 different H. acetosella accessions as a basis for optimization in future research using a formal antibacterial measuring method.…”

Section: Resultsmentioning

confidence: 99%

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Phenolic Compounds in Extracts of Hibiscus acetosella (Cranberry Hibiscus) and Their Antioxidant and Antibacterial Properties

et al. 2020

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Hibiscus species are rich in phenolic compounds and have been traditionally used for improving human health through their bioactive activities. The present study investigated the phenolic compounds of leaf extracts from 18 different H. acetosella accessions and evaluated their biofunctional properties, focusing on antioxidant and antibacterial activity. The most abundant phenolic compound in H. acetosella was caffeic acid, with levels ranging from 14.95 to 42.93 mg/100 g. The antioxidant activity measured by the ABTS assay allowed the accessions to be classified into two groups: a high activity group with red leaf varieties (74.71–84.02%) and a relatively low activity group with green leaf varieties (57.47–65.94%). The antioxidant activity was significantly correlated with TAC (0.933), Dp3-Sam (0.932), Dp3-Glu (0.924), and Cy3-Sam (0.913) contents (p < 0.001). The H. acetosella phenolic extracts exhibited antibacterial activity against two bacteria, with zones of inhibition between 12.00 and 13.67 mm (Staphylococcus aureus), and 10.67 and 13.33 mm (Pseudomonas aeruginosa). All accessions exhibited a basal antibacterial activity level (12 mm) against the Gram-positive S. aureus, with PI500758 and PI500764 exhibiting increased antibacterial activity (13.67 mm), but they exhibited a more dynamic antibacterial activity level against the Gram-negative P. aeruginosa.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Phenolic Compounds in Extracts of Hibiscus acetosella (Cranberry Hibiscus) and Their Antioxidant and Antibacterial Properties

et al. 2020

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“…The ethanol extract of HS showed antimicrobial activities against Salmonella enteritidis, Staphylococcus aureus, Cronobacter sakazakii, Listeria monocytogenes, Escherichia coli, and Bacillus cereus. 36 Anthocyanins extracted from dried calyx displayed an anti-angiogenic effect in a time-and concentrationdependent manner when injected into chick embryos. HS inhibits angiogenesis and, therefore, can be helpful in treating angiogenesis-related diseases, including hypertension.…”

Section: Sour Tea In Traditional Medicinementioning

confidence: 99%

Pharmaceutical properties of sour tea (Hibiscus sabdariffa), Toward an ideal treatment for Hypertension

Fazljou¹,

Kamyab²,

Namdar³

et al. 2021

Pharm Sci

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High blood pressure is the main risk factor for cardiovascular disease and should be controlled primarily by changes in lifestyle, such as regular exercise, a low-salt diet, and weight loss in overweight or obesity. If lifestyle changes are not enough, many types of medications can be used to control high blood pressure; however, side effects constitute one of the most critical limitations of conventional medicines associated with high blood pressure. For this reason, the use of traditional and herbal medicines has been welcomed by the public for many years. Sour tea (Hibiscus sabdariffa) is one of the most suitable herbal medicines for hypertension. According to research results, sour tea has the same effect as conventional medicines without serious side effects. The present study introduces sour tea as a suitable herbal medicine for high blood pressure to provide readers of this article with a comprehensive understanding of the medicinal properties of sour tea for the treatment of hypertension and its effects on several other common diseases, including cancer.

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“…Despite milk and dairy products having a unique composition and a high nutritive value, raw milk and dairy products could provide a potential growth substrate for different zoonotic and foodborne pathogens, which are mostly of animal origin [ 4 ]. Hence, the risk of transmission of theses pathogens originating from animal colonization or infection is considerably high [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Occurrence and D-Tryptophan Application for Controlling the Growth of Multidrug-Resistant Non-O157 Shiga Toxin-Producing Escherichia coli in Dairy Products

Elafify

Sadoma

Aal

et al. 2022

Animals

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The objectives of the current study were first to determine the prevalence of non O157:H7E. coli, especially Shiga toxin-producing Escherichia coli (STEC) in retailed milk and dairy products in Egypt. Second, the antimicrobial resistance profiling and virulence genes of the isolated E. coli strains were screened. Third, evaluation of the inhibitory effects of D-tryptophan against E. coli O26:H11 was further performed. The results revealed that 20% (30/150) of the samples were STEC positive, with 64 isolates harboring some virulent genes, such as Stx1, Stx2, eaeA, and hylA. Serological identification revealed four different pathotypes belonging to EPEC, ETEC, EHEC, and EIEC. Antimicrobial susceptibility testing revealed that 100%, 98.44%, 92.19%, 71.87%, 65.63% and 64.06% of the isolates had a resistance against tetracycline, oxacillin, erythromycin, nalidixic acid, sulphamethoxazol, and ampicillin, respectively. D-tryptophan addition (40 mM) to E. coli O26:H11-inoculated soft cheese and ice cream revealed a significant reduction (p < 0.05) in bacterial growth, especially when accompanied with other food stressors. D-Tryptophan is considered as an effective food preservative and as a promising alternative candidate in the dairy industry.

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Antimicrobial Activity of Hibiscus sabdariffa L. (Roselle) Powder against Food-Borne Pathogens Present in Dairy Products: Preliminary Study

Cited by 8 publications

References 23 publications

Phenolic Compounds in Extracts of Hibiscus acetosella (Cranberry Hibiscus) and Their Antioxidant and Antibacterial Properties

Phenolic Compounds in Extracts of Hibiscus acetosella (Cranberry Hibiscus) and Their Antioxidant and Antibacterial Properties

Pharmaceutical properties of sour tea (Hibiscus sabdariffa), Toward an ideal treatment for Hypertension

Occurrence and D-Tryptophan Application for Controlling the Growth of Multidrug-Resistant Non-O157 Shiga Toxin-Producing Escherichia coli in Dairy Products

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