Effects of dietary hop (<scp><i>Humulus lupulus</i></scp> L.) <i>β</i>‐acids on quality attributes, composition and oxidative stability of pork meat

Sbardella, Maicon; Racanicci, Aline Mondini Calil; Gois, Franz Dias; Lima, Cristiane Bovi de; Migotto, Dannielle Leonardi; Costa, Leandro Batista; Miyada, Valdomiro Shigueru

doi:10.1002/jsfa.8730

Cited by 7 publications

(7 citation statements)

References 59 publications

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“…They include terpenoids (mono-and sesquiterpenes), a large group of phenolic compounds (chalcones, flavanones, flavonols, flavan-3-ols, phenolic acids, tannins, stilbenes and lignans), as well as alkaloids, bitter acids (humulones and lupulones) and others (tab. 1) [1,2,5,6].…”

Section: Introductionmentioning

confidence: 99%

Comparison of antioxidant activity of extracts of hop leaves harvested in different years

et al. 2019

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Introduction: Hop (Humulus lupulus L.) is a common plant in Europe, with many beneficial health effects. In addition to the use in brewing, hops are a valuable source of active substances used in conventional and folk medicine, such as humulones and lupulones, as well as antioxidants, including phenolic compounds.Objective: The aim of the study was to evaluate and compare the antioxidant activity of alcoholic extracts of fresh hop leaves collected in 2017 and 2018. Material and methods:The raw material consisting of fresh hop leaves was extracted using ultrasoundassisted extraction. Methyl, ethyl and isopropyl alcohol at three concentrations were used as extractants. The antioxidant activity of extracts was determined using DPPH and FRAP methods. Total phenolic content was evaluated using the Folin-Ciocalteu technique. Results:All the extracts showed antioxidant potential as well as the phenolic content. Regardless of the harvesting year and methods of evaluation, the highest antioxidant activity and the total polyphenol content were observed for extracts prepared in undiluted methanol, obtained during one hour lasting extraction. Conclusion:The results of the studies have suggested that hop leaves can be a potential source of healthpromoting antioxidants.

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Section: Introductionmentioning

confidence: 99%

Comparison of antioxidant activity of extracts of hop leaves harvested in different years

et al. 2019

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“…On the other hand, other studies reported no effect of sweet chestnut extract on cooking loss [19,47] in agreement with the results of the present study. Considering hops supplementation, an improved WHC was reported by Hanczakowska and Swiątkiewicz [16], while Sbardella et al [17] observed no differences in the WHC of pigs supplemented with hops β-acids. In our study, no effect of hops supplementation on WHC was observed in fresh meat, however, a tendency for a lower salting phase loss in hams was observed.…”

Section: Discussionmentioning

confidence: 91%

“…Hop cones contain many active phenolic compounds, which have been shown to exert antioxidant activities in vitro [13,14] or after their addition to meat products [15]. However, only a few studies have examined the stability of meat with controversial results; reduced lipid oxidation rates [16,17], no effect [18], or even pro-oxidant activity [19].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Supplementing Pig Diet with Chestnut Wood Extract or Hops on Fresh Meat and Dry-Cured Products

et al. 2020

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Oxidation is one of the major reasons for impaired quality of meat and meat products but can be prevented by the addition of antioxidants. In the present study, the effect of dietary sweet chestnut wood extract and hop cones on the quality and oxidative stability of meat and dry-cured products was investigated. Control pigs (N = 11) were fed a commercial diet (13.1 MJ metabolizable energy, 15.5% crude protein), while the other two experimental groups were supplemented with 3% of sweet chestnut wood extract (Tannin; N = 12) or 0.4% of hop cones (Hops; N = 11). The quality of meat and dry-cured products was evaluated by means of chemical composition, water holding capacity, objective color, and lipid and protein oxidation. No major effects of sweet chestnut wood extract or of hops supplementation were observed, nevertheless, some indications of improved water holding capacity could be attributed to antioxidants supplementation. The color evolution of dry-cured bellies from Tannin and Hops groups of pigs during refrigerated storage was also indicative of an improved oxidative stability.

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“…Hop flowers (seed cones) contain aromatic substances, resin and tannins that are important in beer-brewing ( Rybáček, 1991 ). “Hop (Humulus lupulus L.; Cannabaceae) has a wide diversity of secondary metabolites with functional properties, such as bitter acids, essential oils and flavonoids, with health applications on lifestyle-related diseases, inflammation and antioxidants” ( Sbardella et al., 2018 ). “One means of increasing yield and quality is the production of resistant hop lines” ( Henning et al., 2017 ).…”

Section: Introductionmentioning

confidence: 99%

Hop production in the Czech Republic and its international aspects

Šrédl

Prášilová

Svoboda

et al. 2020

Heliyon

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Hop-growing has had a long tradition in the Czech Republic, and it remains in the interest of the Czech economy to further develop this agricultural sector. With an almost one-tenth share of the harvest, the Czech Republic is the third largest producer of aroma hops in the world after Germany and the US, which together account for over two-thirds of the hop market. The purpose of this article is to describe the current state of the Czech and global markets in hops, and the position of the dominant company, Chmelarstvi, druzstvo Zatec, on this market. Towards the end of 2017, the area of hop fields in the Czech Republic reached 4,945 ha, which is the most in the last 7 years. Year-over-year, this represents an increase of 3.4%. The increase was caused by the current demand for quality Czech hops and the weak European harvest in 2015. Thus, the storehouses emptied, and breweries' stores all over the world, to which 80% of domestic hop production is supplied, ran out. Since then, demand and prices have increased to a level that has begun to cover the costs of hop production. This has also meant that investments in hop production have increased. With the increasing area of hop fields in the Czech Republic, hop growers have to deal with a significant problem, which is the unavailability of workers.

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Effects of dietary hop (Humulus lupulus L.) β‐acids on quality attributes, composition and oxidative stability of pork meat

Abstract: Dietary hop β-acids fed to pigs might reduce lipid, increase protein and reduce lipid oxidation without affecting physical attributes of the pork meat. © 2017 Society of Chemical Industry.

Cited by 7 publications

References 59 publications

Comparison of antioxidant activity of extracts of hop leaves harvested in different years

Comparison of antioxidant activity of extracts of hop leaves harvested in different years

The Effect of Supplementing Pig Diet with Chestnut Wood Extract or Hops on Fresh Meat and Dry-Cured Products

Hop production in the Czech Republic and its international aspects

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