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Povzetek: Despite accumulating evidence of the importance of the jellyfish-associated microbiome to jellyfish, its potential relevance to blue biotechnology has only recently been recognized. In this review, we emphasize the biotechnological potential of host–microorganism systems and focus on gelatinous zooplankton as a host for the microbiome with biotechnological potential. The basic characteristics of jellyfish-associated microbial communities, the mechanisms underlying the jellyfish-microbe relationship, and the role/function of the jellyfish-associated microbiome and its biotechnological potential are reviewed. It appears that the jellyfish-associated microbiome is discrete from the microbial community in the ambient seawater, exhibiting a certain degree of specialization with some preferences for specific jellyfish taxa and for specific jellyfish populations, life stages, and body parts. In addition, different sampling approaches and methodologies to study the phylogenetic diversity of the jellyfish-associated microbiome are described and discussed. Finally, some general conclusions are drawn from the existing literature and future research directions are highlighted on the jellyfish-associated microbiome.
Ključne besede: Cnidaria, Ctenophora, biodiversity, bioactive compounds, microbial communities, blue biotechnology
Objavljeno v DiRROS: 06.08.2024; Ogledov: 165; Prenosov: 72
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Povzetek: The adaptation of autochthonous olive varieties to local soil and climatic conditions can lead to a unique chemical composition and characteristics of olive oils that may differ from the generally accepted quality standards set out in the International Olive Oil Council strategy documents and EU regulations. Therefore, the fatty acid composition, biophenol, tocopherol, sterol and triterpenic dialcohol content and composition of the autochthonous Slovenian olive varieties ‘Buga’, ‘Crnica’ ˇ and ‘Drobnica’ were studied for a three-year period with the aim of valorising the characteristics of the three olive varieties. Standardised and accredited analytical methods in accordance with SIST EN ISO/IEC 17025:2017 were applied. The results of the investigation showed that the highest average amount of oleic acid (75.75%) was found in the oils of the ‘Crnica’ variety, followed by the ‘Drobnica’ ˇ (72.06%) and the ‘Buga’ (68.73%). All three varieties are a good source of total biophenols (‘Buga’ 616 mg/kg, ‘Drobnica’ 569 mg/kg and ‘Crnica’ 427 mg/kg) and ˇ α-tocopherol (‘Buga’ 378 mg/kg, ‘Drobnica’ 279 mg/kg, and ‘Crnica’ 243 mg/kg). ‘Buga’ and ‘Drobnica’ are characterised by high ˇ amounts of total sterols, 2468 mg/kg and 2391 mg/kg, respectively, while ‘Crnica’ oils, in comparison, ˇ showed a lower average value of total sterols (1351 mg/kg). Due to their exceptional chemical composition, ‘Buga’, ‘Crnica’ and ‘Drobnica’ show great potential for the further cultivation and ˇ valorisation of traditional olive oil production in the region, thus contributing to the preservation of biodiversity and local traditions. The quality parameters of olive oil from the autochthonous Slovenian olive varieties ‘Buga’, ‘Crnica’ and ‘Drobnica’ also fulfil the limits for extra virgin olive oil ˇ according to the Commission Delegated Regulation (EU) 2022/2104, despite local climatic influences. However, accelerated growth due to climatic changes affecting early harvest can lead to them falling outside these limits, which was observed in particular for the ‘Buga’ variety in terms of the linoleic acid content. This study emphasises the importance of timing the harvest to achieve optimum maturity and meet EU quality standards, taking into account the genetic makeup of the varieties and their response to the current climatic conditions.
Ključne besede: olive, autochthonous Slovenian olive varieties, olive oil, bioactive compounds, chemistry, characterisation
Objavljeno v DiRROS: 24.07.2024; Ogledov: 108; Prenosov: 52
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Ključne besede: advanced oxidation process, persistent organic compounds, pharmaceutical by- products, degradation mechanism, reactor design, analytical methods
Objavljeno v DiRROS: 10.03.2022; Ogledov: 838; Prenosov: 637
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Povzetek: In Europe, emerging organic compounds (EOCs) in groundwater is a growing research area. Prioritisationfor monitoring EOCs in Europe was formalised in 2019 through the development of thefirst voluntarygroundwater watch list (GWWL). Despite this, groundwater occurrence data in the peer reviewedliterature for Europe has not been reviewed to date. Questions surrounding the effect, toxicity, move-ment in the subsurface and unsaturated zone make the process of regulating EOC use difficult. The aim inEurope is to develop a unified strategy for the classification, and prioritisation of EOCs to be monitored ingroundwater. This paper compiles evidence from the recent published studies from across Europe, since2012, when the last major literature global review of EOCs in groundwater took place. A total of 39studies were identified for review based on specific selection criteria (geography, publication date,sample size>10, inclusion of EOCs data). Data on specific compounds, and associated meta-data, arecompiled and reviewed. The two most frequently detected EOCs, carbamazepine and caffeine, occurredin groundwater at concentrations of up to 2.3 and 14.8mg/L, respectively.
Ključne besede: emerging organic chemicals, environmental exposure, groundwater contaminants, compounds of concern, groundwater hazards
Objavljeno v DiRROS: 13.01.2021; Ogledov: 1725; Prenosov: 767
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Ključne besede: wine aroma, leaf removal, varietal thiols, aroma compounds, hydroxycinnamates
Objavljeno v DiRROS: 11.05.2020; Ogledov: 2468; Prenosov: 1293
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