Prevalence of coronavirus from diarrheic calves in the Republic of Korea

Park, Jinho; Han, Du-Gyeong; Kim, SuHee; Chae, Jeong-Byoung; Chae, Joon‐Seok; Yu, Dihua; Choi, Kyoung-Seong

doi:10.4103/2221-1691.221037

Cited by 9 publications

(4 citation statements)

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“…1) obtained from essential oil of clove (Syzygium aromaticum) which contains 73.6-84.1% of eugenol [1,[4][5][6]. Essential oils with lower content of eugenol are cinnamon oil (Cinnamomum altissimum, Cinnamomum verum, or Cinnamomum cassia)-1.2-14.7% [6][7][8][9][10] and laurel oil (Laurus nobilis)-1.4-2.2% [11]. These oils rich in eugenol are used in dietary supplements, cosmetics, aromatherapy, and phytotherapy, due to their anesthetic, antifungal, and insecticidal properties [7][8][9][10][11][12][13][14][15].…”

Section: Phenolic Terpenoids: Eugenol Carvacrol and Thymolmentioning

confidence: 99%

“…Due to their high biological activity products rich in these phenolic terpenoids have found wide application as: food or food additives, aromatic spices, para-pharmaceutical products, dietary supplements, herbal products, cosmetics, or fragrance raw materials [2,[7][8][9][10][11][12][13][14][15] and [29][30][31][32][33][34][35][36][37]. The lethal doses of these compounds are high-LD 50 are: > 2000, 810, and 980 mg/kg, for eugenol, carvacrol, and thymol, respectively (rat, orally) [38]; and what is important, in nature, these compounds are not present in such high concentrations.…”

Section: Phenolic Terpenoids: Eugenol Carvacrol and Thymolmentioning

confidence: 99%

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Multivariate approach in voltammetric identification and simultaneous determination of eugenol, carvacrol, and thymol on boron-doped diamond electrode

Kowalcze

Jakubowska

2019

Monatsh Chem

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The paper presents multivariate partial least-squares calibration model defined for the identification and simultaneous determination of phenolic terpenoids-eugenol, carvacrol, and thymol-by means of the differential pulse voltammetry. For the first time, using boron-doped diamond electrode signal, electrochemical distinction of carvacrol and thymol, despite the short distance between the peaks (15 mV), was described. The analytes' concentrations applied in the calibration model were selected using the 3-factorial central composite design. The multivariate partial least-squares model, with optimized data pre-processing, was used for determination of eugenol, carvacrol, and thymol in the concentration ranges of 0.77-13.86, 0.58-10.40, and 0.73-7.32 mg/dm 3 , respectively. The quality of the method, expressed by the root-mean-squared error of calibration was 0.55, 0.20, and 0.26 mg/dm 3 for the specified analytes. The recovery in the analysis of the pure signals was 98.92%, 101.62%, and 101.46%, what confirmed the possibility of clearly distinguishing the thymol and carvacrol peaks. In the spiked honey samples, the accuracy of eugenol, carvacrol, and thymol determination, expressed by the root-meansquared error of prediction, was in the range 0.20-0.83 mg/dm 3 , and recovery in the range 80.9-111.9%. Application of the presented model not only enables electrochemical identification and simultaneous determination of eugenol, carvacrol, and thymol, but also allows rapid, accurate, and low-cost verification of authenticity of the commercial products.

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Section: Phenolic Terpenoids: Eugenol Carvacrol and Thymolmentioning

confidence: 99%

Section: Phenolic Terpenoids: Eugenol Carvacrol and Thymolmentioning

confidence: 99%

Multivariate approach in voltammetric identification and simultaneous determination of eugenol, carvacrol, and thymol on boron-doped diamond electrode

Kowalcze

Jakubowska

2019

Monatsh Chem

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“…73,74 Polysaccharides produced by S. mutans are the main constituents in the matrix of cariogenic plaque biolms recognized as an essential virulence factor. [73][74][75] To this end, the regulating genes of EPS matrix formation are optimal targets for the development of anti-caries compounds. 40,41,73 The rnc gene participates in the formation and virulence expression of S. mutans biolm.…”

Section: Discussionmentioning

confidence: 99%

Effects of S. mutans gene-modification and antibacterial calcium phosphate nanocomposite on secondary caries and marginal enamel hardness

et al. 2019

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“…According to previous studies, 68.7% of calf deaths in Korean native beef calves and 53.4% in dairy calves were caused by digestive diseases [6,7]. Additionally, there have been several recent reports investigating pathogens that cause calf diarrhea [8][9][10]. However, most of them have been focused on specific pathogens from calf feces.…”

Section: Introductionmentioning

confidence: 99%

The prevalence of causative agents of calf diarrhea in Korean native calves

Chae¹,

Kim²,

Kang³

et al. 2021

J Anim Sci Technol

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Infectious calf diarrhea is one of the most significant diseases of neonatal calves. This study is conducted to identify the prevalence of pathogens in calf diarrhea for 2 years. A total of 544 feces samples from Korean native beef calves were obtained to investigate selected seven pathogens causing calf diarrhea: bovine rotavirus, bovine coronavirus, Cryptosporidium parvum, bovine viral diarrhea virus, Eimeria species, Escherichia coli K99, and Salmonella species. The presence of diarrhea, the number and species of detected pathogens, and the calves' ages were analyzed using various statistical methods depending on the case. Of the 544 calves, 340 calves (62.5%) had normal feces and 204 calves (37.5%) had diarrhea. The presence of pathogens was significantly associated with diarrhea (p<0.01) and fecal scores and the number of detected pathogens showed a significant linear trend (p<0.001). Of the 7 target pathogens, 6 were detected in samples, but only C. parvum (p=0.001) and bovine rotavirus (p<0.001) were found at significantly higher rates in diarrheic calves than in non-diarrheic calves. Only Eimeria spp. showed a significant linear trend between the detection rate of the pathogen and the age groups (p<0.05).

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Prevalence of coronavirus from diarrheic calves in the Republic of Korea

Cited by 9 publications

References 1 publication

Multivariate approach in voltammetric identification and simultaneous determination of eugenol, carvacrol, and thymol on boron-doped diamond electrode

Multivariate approach in voltammetric identification and simultaneous determination of eugenol, carvacrol, and thymol on boron-doped diamond electrode

Effects of S. mutans gene-modification and antibacterial calcium phosphate nanocomposite on secondary caries and marginal enamel hardness

The prevalence of causative agents of calf diarrhea in Korean native calves

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