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International Journal of Medicinal Mushrooms

Erscheint 12 Ausgaben pro Jahr

ISSN Druckformat: 1521-9437

ISSN Online: 1940-4344

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00066 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.34 SJR: 0.274 SNIP: 0.41 CiteScore™:: 2.8 H-Index: 37

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Determination of Optimal Extraction Time and Temperature by Response Surface Methodology to Obtain High-Level Antioxidant Activity in Culinary-Medicinal Oyster Mushroom, Pleurotus ostreatus (Jacq.:Fr.) P. Kumm. (Higher Basidiomycetes)

Volumen 14, Ausgabe 6, 2012, pp. 593-602
DOI: 10.1615/IntJMedMushr.v14.i6.70
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ABSTRAKT

A central composite design of response surface methodology (RSM) was employed to optimize the extraction time (X1: 266.4−393.6 min) and temperature (X2: 42.9−57.1°C) of Pleurotus ostreatus aqueous extract with high antioxidant activities, namely DPPH radical-scavenging activity, ABTS radical cation inhibition, and ferric re-ducing/antioxidant power, as well as total phenolic content (TPC). Results showed that the data were adequately fitted into four second-order polynomial models developed by RSM. The extraction time and temperature were found to have significant quadratic effects on antioxidant activities and TPC. The optimal extraction time and temperature were 282.3 min and 42.9°C (DPPH), 393.6 min and 42.9°C (ABTS), 340.4 min and 49.8°C (FRAP), and 347.6 min, 49.7°C (TPC), with corresponding yields of 53.32%, 73.20%, 37.14 mM Fe2+ equivalents/100 g, and 826.33 mg gallic acid equivalents/100 g, respectively. These experimental data were close to their predicted values. The establishment of such a model provides a good experimental basis for employing RSM to optimize the extraction time and temperature for high antioxidant activities from P. ostreatus.

REFERENZIERT VON
  1. Bach Fabiane, Zielinski Acácio Antonio Ferreira, Helm Cristiane Vieira, Maciel Giselle Maria, Pedro Alessandra Cristina, Stafussa Ana Paula, Ávila Suelen, Haminiuk Charles Windson Isidoro, Bio compounds of edible mushrooms: in vitro antioxidant and antimicrobial activities, LWT, 107, 2019. Crossref

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