Direct Rub Inoculation of Fungal Flora Changes Fatty Acid Composition and Volatile Flavors in Dry-Aged Beef: A Preliminary Study

Here, we established a method to produce dry-aged beef (DAB) by rub inoculation with fungal flora on the prepared DAB surface. Portions of Holstein steers’ rumps were prepared by direct rub inoculation of fungal flora or without treatment (conventional DAB) and dry-aged for 26 days in an aging room...

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Main Authors: Nana Mikami, Takahito Toyotome, Masahiro Takaya, Kenichi Tamura
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/12/11/1391
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author Nana Mikami
Takahito Toyotome
Masahiro Takaya
Kenichi Tamura
author_facet Nana Mikami
Takahito Toyotome
Masahiro Takaya
Kenichi Tamura
author_sort Nana Mikami
collection DOAJ
description Here, we established a method to produce dry-aged beef (DAB) by rub inoculation with fungal flora on the prepared DAB surface. Portions of Holstein steers’ rumps were prepared by direct rub inoculation of fungal flora or without treatment (conventional DAB) and dry-aged for 26 days in an aging room at 2.9 °C and 90% relative humidity. We compared the fungal covering and meat quality, including fatty acid composition and volatile aromatic compounds, of fungal-inoculated DAB with those of the conventional DAB. The fungal-inoculated DAB was almost entirely covered with white mold, in contrast to the conventional DAB. Moreover, the proportion of oleic acid and the concentration of nine volatile compounds significantly increased in the raw meat of fungal-inoculated DAB compared with those in the conventional DAB (<i>p</i> < 0.05). These results suggested that direct rub inoculation of fungal flora from prepared DAB may accelerate DAB production and efficiently enhance the “melt-in-the-mouth” feeling and flavors of DAB.
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spelling doaj.art-e41dbca28e4d4b93a88487f40a7621042023-11-23T13:37:36ZengMDPI AGAnimals2076-26152022-05-011211139110.3390/ani12111391Direct Rub Inoculation of Fungal Flora Changes Fatty Acid Composition and Volatile Flavors in Dry-Aged Beef: A Preliminary StudyNana Mikami0Takahito Toyotome1Masahiro Takaya2Kenichi Tamura3Department of Life and Food Sciences, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Hokkaido, JapanDepartment of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080-8555, Hokkaido, JapanThe Tokachi Foundation, Obihiro 080-2462, Hokkaido, JapanKitaichi Meat Co., Ltd., Sapporo 007-0826, Hokkaido, JapanHere, we established a method to produce dry-aged beef (DAB) by rub inoculation with fungal flora on the prepared DAB surface. Portions of Holstein steers’ rumps were prepared by direct rub inoculation of fungal flora or without treatment (conventional DAB) and dry-aged for 26 days in an aging room at 2.9 °C and 90% relative humidity. We compared the fungal covering and meat quality, including fatty acid composition and volatile aromatic compounds, of fungal-inoculated DAB with those of the conventional DAB. The fungal-inoculated DAB was almost entirely covered with white mold, in contrast to the conventional DAB. Moreover, the proportion of oleic acid and the concentration of nine volatile compounds significantly increased in the raw meat of fungal-inoculated DAB compared with those in the conventional DAB (<i>p</i> < 0.05). These results suggested that direct rub inoculation of fungal flora from prepared DAB may accelerate DAB production and efficiently enhance the “melt-in-the-mouth” feeling and flavors of DAB.https://www.mdpi.com/2076-2615/12/11/1391direct rub inoculationdry-aged beef<i>Mucoraceae</i>oleic acidvolatile aromatic compoundsnutty flavor
spellingShingle Nana Mikami
Takahito Toyotome
Masahiro Takaya
Kenichi Tamura
Direct Rub Inoculation of Fungal Flora Changes Fatty Acid Composition and Volatile Flavors in Dry-Aged Beef: A Preliminary Study
Animals
direct rub inoculation
dry-aged beef
<i>Mucoraceae</i>
oleic acid
volatile aromatic compounds
nutty flavor
title Direct Rub Inoculation of Fungal Flora Changes Fatty Acid Composition and Volatile Flavors in Dry-Aged Beef: A Preliminary Study
title_full Direct Rub Inoculation of Fungal Flora Changes Fatty Acid Composition and Volatile Flavors in Dry-Aged Beef: A Preliminary Study
title_fullStr Direct Rub Inoculation of Fungal Flora Changes Fatty Acid Composition and Volatile Flavors in Dry-Aged Beef: A Preliminary Study
title_full_unstemmed Direct Rub Inoculation of Fungal Flora Changes Fatty Acid Composition and Volatile Flavors in Dry-Aged Beef: A Preliminary Study
title_short Direct Rub Inoculation of Fungal Flora Changes Fatty Acid Composition and Volatile Flavors in Dry-Aged Beef: A Preliminary Study
title_sort direct rub inoculation of fungal flora changes fatty acid composition and volatile flavors in dry aged beef a preliminary study
topic direct rub inoculation
dry-aged beef
<i>Mucoraceae</i>
oleic acid
volatile aromatic compounds
nutty flavor
url https://www.mdpi.com/2076-2615/12/11/1391
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AT takahitotoyotome directrubinoculationoffungalflorachangesfattyacidcompositionandvolatileflavorsindryagedbeefapreliminarystudy
AT masahirotakaya directrubinoculationoffungalflorachangesfattyacidcompositionandvolatileflavorsindryagedbeefapreliminarystudy
AT kenichitamura directrubinoculationoffungalflorachangesfattyacidcompositionandvolatileflavorsindryagedbeefapreliminarystudy