Novel natural food preservatives and applications in seafood preservation: a review

2018 ◽  
Vol 99 (5) ◽  
pp. 2068-2077 ◽  
Author(s):  
Nalan Gokoglu
2012 ◽  
Vol 38 (1) ◽  
pp. 146-152 ◽  
Author(s):  
I.P.S. Kapoor ◽  
Bandana Singh ◽  
Sunita Singh ◽  
Gurdip Singh

Author(s):  
A.S. Meyer ◽  
K.I. Suhr ◽  
P. Nielsen ◽  
F. Holm

Author(s):  
Nidal Jaradat ◽  
Saad Al-Lahham

Abstract Background Many recent studies have shown that medicinal plants, which have been used worldwide through the past history in the folkloric medicine, harbor a significant number of novel metabolic compounds with potent pharmacological properties. In several countries, the aerial parts of the Scolymus angiospermus plant have been used as a food supply and as a folkloric medicinal plant. The current study aimed is to investigate the antimicrobial, antilipase, antioxidant activities and phytochemical profile of methanolic, hexane, aqueous and ethyl acetate fractions obtained from the aerial parts of S. angiospermus. Methods Phytochemical assessments were based on standard analytical methods. The obtained fractions were evaluated for their antioxidant capacity and their antilipase activity using 2,2-diphenyl-1-picrylhydrazyl and porcine pancreatic lipase inhibitory tests, respectively. Antimicrobial activity of the obtained fractions was evaluated using broth microdilution assay against several American Type Culture Collection bacterial and fungal strains and Methicillin-Resistant Staphylococcus aureus clinical isolate. Results Our data showed that of all obtained fractions used in the above-mentioned assays, both of methanolic and aqueous fractions, had the highest content of flavonoids (24.93 ± 2.11 and 12.21 ± 2.11 mg QUE/g, respectively) and phenolic compounds (96.28 ± 2.87 and 91.25 ± 2.63 mg of GAEq/g, respectively) as well as the best levels of both antioxidant (half maximal inhibitory concentration (IC50) 13.67 ± 1.44 and 14.69 ± 1.97 µg/ml, respectively) and antilipase (IC50 134.89 ± 1.65 and 269.15 ± 2.33 µg/ml, respectively) activities. In addition, these fractions exhibited various levels of both antibacterial and antifungal activities. Hydrophilic fractions were more potent against the investigated bacterial strains, while hydrophobic fractions were more potent against the investigated fungal strains. Conclusions The hydrophilic fractions derived from S. angiospermus have shown the best antioxidant and antilipase effects. This is may be due to the high contents of phenols and/or flavonoids. However, further investigations are essential to isolate and identify the antioxidant, antilipase and antimicrobial compounds. Our data provide significant evidence that S. angiospermus can be very useful in the prevention and treatment of various infectious and non-infectious chronic diseases and as natural food preservatives.


2009 ◽  
pp. 195-209 ◽  
Author(s):  
Marija Skrinjar ◽  
Nevena Nemet

Spices and herbs have been used as food additives since ancient times, as flavouring agents but also as natural food preservatives. A number of spices shows antimicrobial activity against different types of microorganisms. This article gives a literature review of recent investigations considering antimicrobial activity of essential oils widely used spices and herbs, such as garlic, mustard, cinnamon, cumin, clove, bay, thyme, basil, oregano, pepper, ginger, sage, rosemary etc., against most common bacteria and fungi that contaminate food (Listeria spp., Staphylococcus spp., Salmonella spp., Escherichia spp., Pseudomonas spp., Aspergillus spp., Cladosporium spp. and many others). Antimicrobial activity depends on the type of spice or herb, type of food and microorganism, as well as on the chemical composition and content of extracts and essential oils. Summarizing results of different investigations, relative antimicrobial effectiveness can be made, and it shows that cinnamon, cloves and mustrad have very strong antimicrobial potential, cumin, oregano, sage, thyme and rosemary show medium inhibitory effect, and spices such as pepper and ginger have weak inhibitory effect.


2011 ◽  
Vol 343-344 ◽  
pp. 737-742 ◽  
Author(s):  
Shun Cheng Ren ◽  
Yong Chao Fan ◽  
Cui Cui Li

This research aimed to study the effects of 30 kinds of Chinese herbs on fungi in food. 30 kinds of Chinese herbs and 6 common fungi in food were used as experiment material. The effects of water, ethanol absolute and petroleum ether extracts on fungi were studied by filter paper method. The results showed that water extracts of Coptis chinensis. and Magnolia officinalis Rehd.et Wils., the ethanol extracts of Syzygium aromaticum Thunb., Coptis chinensis, Cinnamomum cassia Presl and Cassia Bark, the petroleum ether extracts of Syzygium aromaticum Thunb. and Cassia Bark had strong antimicrobial ability. The study can provide the scientific basis for exploring natural food preservatives.


2009 ◽  
Vol 3 (1) ◽  
pp. 50-56 ◽  
Author(s):  
Hend A. Hamedo ◽  
Hala M. Abdelmigid

In this study, investigations were carried out to assess the efficiency of two plant essential oils; rosemary and oregano as natural food preservatives. The effect of the plant essential oils at concentrations of 0.1%, 0.5% and 1% was studied in the soft cheese against Salmonella enteritidis and Escherichia coli at fridge temprature over a 14-day period. The essential oils performed well in the inhibition of S. enteritidis and E. coli. It is concluded that selected plant essential oils can act as potent inhibitors of both microorganisms in a food product. At the same time, evaluation of their safety as food preservatives was undertaken via monitoring the genotoxic activity of the mentioned essential oils using Vicia faba test. Vicia faba roots were treated with the above concentrations for 3 hours. Results revealed cytotoxic and genotoxic effects of the applied doses. Mitotic index decreased significantly when compared to control. Chromosomal abnormalities and micronuclei were also observed and the effects were dose-dependent. Despite the efficient role of the studied oils as antimicrobial agents, their genotoxicity potential in eukaryotic cells made them unacceptable as food preservatives, particularly at high doses. Therefore, more research in the use of essential oils as food preservatives is needed.


2021 ◽  
Vol 854 (1) ◽  
pp. 012018
Author(s):  
S Cvetkovic ◽  
B Nastasijevic ◽  
D Mitic-Culafic ◽  
S Djukanovic ◽  
B Nikolic

Abstract Lipid oxidation that occurs in different types of food can cause alterations in nutritional qualities, flavour, texture and shelf life of foods. Furthermore, high temperature cooking of protein-rich food can lead to formation of heterocyclic aromatic amines capable of compromising the integrity of DNA molecules. To reduce these harmful effects, research has been focused on investigating plants as a source of potential natural food additives and preservatives. Thus, the aim of this study was to estimate antioxidant and antigenotoxic activities of 50% ethanolic-aqueous root and leaf extracts of the medicinal plant, Gentiana lutea. Antioxidative effect was investigated using the DPPH assay, while antigenotoxicity against the mutagen 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) was determined using Salmonella Typhimurium TA 1535 in the SOS/umuC assay. Leaf extract showed high antioxidative effect with the ability to neutralize up to 87% of free radicals at 400 µg mL-1. Antigenotoxicity testing revealed that both extracts exhibited remarkable genoprotective activity against PhIP-induced DNA damage, with the highest inhibition levels being 70% and 85% for root and leaf extracts, respectively. Results obtained are encouraging and suggest further research of G. lutea extracts as potential food preservatives and additives in improving food quality and human health.


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