Growth Characteristics and Physiological Functionality of Yeasts in Pear Marc Extracts

Jang, In-Taek; Kang, Min-Gu; Na, Kwang-Chul; Lee, Jong-Soo

doi:10.5941/myco.2011.39.3.170

Cited by 6 publications

(7 citation statements)

References 10 publications

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“…Tyrosinase 저해활성은 시료 500 µl에 5 mM L-DOPA 0.2 ml, 0.1 M sodium phosphate 완충용액(pH 6.0)를 혼 합한 후 tyrosinase 11 U을 첨가하여 35 o C에서 2분간 반응 시킨 다음 475 nm에서 흡광도를 측정하여 시료액 무첨가 대조구의 값과 비교하여 활성을 계산하였다 (Jang et al, 2011).…”

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Production of Tyrosinase Inhibitor from Saccharomyces cerevisiae

Jang¹,

Kim²,

Kang³

et al. 2012

The Korean Journal of Mycology

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: Physiological functionalities of culture concentrates from various fungi were investigated. The culture concentrates from Saccharomyces cerevisiae Y277-3 showed the highest tyrosinase inhibitory activity of 42.7%. Among mold physiological functionalities, the culture concentrates from Aspergillus orygae CN20-3-1-4 showed the highest antioxidant activity of 15.8%. The other functionalities of fungi were very low or not detected. The intracellular tyrosinase inhibitor from Saccharomyces cerevisiae Y277-3, which showed the highest physiological functionalities was maximally produced when the strain was cultured in PD broth at 30 o C for 24 h.

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“…여기에 xanthine oxidaes (0.2 U/ml) 100 µL 를 가하여 37 o C에서 5분간 반응시킨 후 1 N HCl 200 µL 를 가하여 반응을 정지시켰다. 이 때 12,000 rpm으로 10분간 원심 분리하여 단백질 제거 후 생성된 uric acid를 292 nm에 서 측정하였다 (Jang et al, 2011). …”

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Production of Tyrosinase Inhibitor from Saccharomyces cerevisiae

Jang¹,

Kim²,

Kang³

et al. 2012

The Korean Journal of Mycology

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“…Many toxic HMs act as molecular "mimics" of nutritionally essential trace elements; as a result, they may compete with essential metallic cofactors for entry into cells and incorporation into enzymes [21]. The HM ions form complexes with proteins binding with the carboxylic acid, amine and thiol groups in the molecule.…”

Section: Discussionmentioning

confidence: 99%

Heavy Metal Contamination of Selected Vegetables from Crude Oil and Non Crude Oil-Producing States in Nigeria: A Comparative Study

Okonkwo

Onyechi

Anukwuorji

et al. 2018

SFP

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The aim of this study was to investigate and compare the heavy metal (HM) concentrations of selected vegetables harvested from crude oil-producing Rivers State and non-oil-producing Enugu State in Nigeria. Four vegetables;Telfaria occidentialis, Talinum triangulare, Ocimium gratissimum, and Murraya koenigii,were obtained from local farms in local government areas (LGAs) selected, each from the 3 senatorial zones in each state.The chemical analysis in mg/100g of the heavy metals (HMs) was conducted using standard methods. There mean values varied in the order: lead (Pb) > cadmium (Cd) > mercury (Hg) in mg/100g. Vegetable samples harvested from Rivers State had the highest toxicity level for both Pb (0.19 to 0.34) and Hg (0.01 to 0.03), while samples harvested from Enugu State had the highest toxicity level for Cd (0.07 to 0.25). The mean Pb contents forOcimium gratissimum(0.27) andTalinum triangulare(0.26), harvested from Rivers States were significantly (p < 0.05) higher than their counterparts harvested from Enugu State (0.19 and 0.21, respectively). Mercury had the least mean value than Pb and Cd in all the locations. All the vegetables from all the localities in this study had toxic levels of HM much above the FAO/WHO acceptable limits; 0.03 mg/100g for Pb, and 0.02 mg/100g for Cd in foods and 0.0001 mg/100g for Hg in mineral water. It can therefore be said that the public health importance for increased consumption of fruits and vegetables may equally mean increased HM consumption and bioaccumulation for the population in Rivers and Enugu States.

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“…Yeast produce various bioactive agents [1][2][3][4] including an antihypertensive angiotensin I-converting enzyme inhibitor [5]. Most of the yeasts that produce these compounds have been isolated from fermented foods or their raw materials [3,4,6].…”

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Characteristics of Two Unrecorded Yeasts from Wild Flowers in Ulleungdo, Korea

Hyun¹,

Min²,

Lee³

et al. 2014

The Korean Journal of Mycology

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Two unrecorded yeasts, Meyerozyma caribbica UL5-1 and Pichia silvicola UL6-1 were screened from 58 yeasts which were isolated from wild flowers in Ulleungdo in Gyeongsangbuk-do, Korea. The morphological and cultural characteristics of these unrecorded yeasts were investigated. Both yeasts were oval in shape and formed pseudomycelia. P. silvicola UL6-1 formed ascospore, but M. UL5-1 did not. P. silvicola UL6-1 and M. caribbica UL5-1 also grew in vitamin-free medium and 5% NaClcontaining yeast extract-peptone-dextrose medium. The two unrecorded yeasts assimilated glucose, galactose, xylose, cellobiose, trehalose, glycerol and sorbitol, and also fermented glucose, fructose and mannose. The supernatant of both M. caribbica UL5-1 and P. silvicola UL6-1 showed high antihypertensive angiotensin I-converting enzyme inhibitory activity of 84.2% and 82.6%, respectively. Cell-free extract of P. silvicola UL6-1 also showed very high anti-diabetic α-glucosidase inhibitory activity (85.8%).

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Growth Characteristics and Physiological Functionality of Yeasts in Pear Marc Extracts

Cited by 6 publications

References 10 publications

Production of Tyrosinase Inhibitor from Saccharomyces cerevisiae

Production of Tyrosinase Inhibitor from Saccharomyces cerevisiae

Heavy Metal Contamination of Selected Vegetables from Crude Oil and Non Crude Oil-Producing States in Nigeria: A Comparative Study

Characteristics of Two Unrecorded Yeasts from Wild Flowers in Ulleungdo, Korea

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