|
1
|
Klisović D, Novoselić A, Lukić I, Brkić Bubola K. Extra virgin olive oil under simulated consumption conditions: Evaluation of quality, health, and flavour properties. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.104570] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
|
2
|
Brkić Bubola K, Kolega Š, Marcelić Š, Šikić Z, Gašparović Pinto A, Zorica M, Klisović D, Novoselić A, Jukić Špika M, Kos T. Effect of Different Watering Regimes on Olive Oil Quality and Composition of Coratina Cultivar Olives Grown on Karst Soil in Croatia. Foods 2022; 11:foods11121767. [PMID: 35741965 PMCID: PMC9223069 DOI: 10.3390/foods11121767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 02/05/2023] Open
Abstract
Croatian islands are olive growing areas characterized by poor conditions for olive trees because of karst soil and a precipitation deficiency. Under these conditions, irrigation is a very important factor for constant olive oil production. This paper aims to investigate the effects of different watering regimes on quantity, sensory and chemical quality and composition of Coratina cv. olive oil obtained from trees grown on ameliorate karst soil during two harvesting years. Olive trees were subjected to rainfed conditions and three different irrigation treatments (T1—deficit irrigation representing the usual producer’s practice, T2—regulated deficit irrigation in respect to phenological stages, T3—full irrigation). Irrigation treatments increased oil yield compared to rainfed conditions (T1 + 58%, T2 + 66% and T3 + 74%, representing average values for both studied years). All olive oil samples were of extra quality. Irrigation led to a decrease in carotenoids, volatiles, polyunsaturated fatty acids and linolenic acid contents, with no difference found among irrigation treatments. Total phenols and secoiridoids concentration was not affected by irrigation, indicating that similar oil quality could be achieved with less demand on the water supply. Obtained results could help producers to define a suitable irrigation management in particular conditions of ameliorate karst.
Collapse
Affiliation(s)
- Karolina Brkić Bubola
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, Karla Huguesa 8, HR-52440 Poreč, Croatia; (K.B.B.); (D.K.); (A.N.)
| | - Šimun Kolega
- Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia; (Š.M.); (Z.Š.); (A.G.P.); (M.Z.); (T.K.)
- Correspondence:
| | - Šime Marcelić
- Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia; (Š.M.); (Z.Š.); (A.G.P.); (M.Z.); (T.K.)
| | - Zoran Šikić
- Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia; (Š.M.); (Z.Š.); (A.G.P.); (M.Z.); (T.K.)
| | - Ana Gašparović Pinto
- Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia; (Š.M.); (Z.Š.); (A.G.P.); (M.Z.); (T.K.)
| | - Marko Zorica
- Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia; (Š.M.); (Z.Š.); (A.G.P.); (M.Z.); (T.K.)
| | - Dora Klisović
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, Karla Huguesa 8, HR-52440 Poreč, Croatia; (K.B.B.); (D.K.); (A.N.)
| | - Anja Novoselić
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, Karla Huguesa 8, HR-52440 Poreč, Croatia; (K.B.B.); (D.K.); (A.N.)
| | - Maja Jukić Špika
- Department of Applied Sciences, Institute for Adriatic Crops and Karst Reclamation, Via Duilova 11, HR-21000 Split, Croatia;
- Centre of Excellence for Biodiversity and Molecular Plant Breeding (CoE CroP-BioDiv), Svetošimunska Cesta 25, HR-10000 Zagreb, Croatia
| | - Tomislav Kos
- Department of Ecology, Agronomy and Aquaculture, University of Zadar, Square of Prince Višeslav 9, HR-23000 Zadar, Croatia; (Š.M.); (Z.Š.); (A.G.P.); (M.Z.); (T.K.)
| |
Collapse
|
|
3
|
Žanetić M, Jukić Špika M, Ožić MM, Brkić Bubola K. Comparative Study of Volatile Compounds and Sensory Characteristics of Dalmatian Monovarietal Virgin Olive Oils. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10101995. [PMID: 34685804 PMCID: PMC8537805 DOI: 10.3390/plants10101995] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/17/2021] [Accepted: 09/21/2021] [Indexed: 06/01/2023]
Abstract
Volatile compounds are chemical species responsible for the distinctive aroma of virgin olive oil. Monovarietal olive oils have a peculiar composition of volatiles, some of which are varietal descriptors. In this paper, the total phenolic content (TPC), fatty acid composition, volatile compounds, and sensory profile of monovarietal olive oils from four Dalmatian most common olive cultivars-Oblica, Lastovka, Levantinka, and Krvavica-were studied. The volatile composition of olive oils was analyzed using headspace solid-phase microextraction with gas chromatography/mass spectrometry. The highest mean TPC value was measured in Oblica and Krvavica oils (around 438 mg/kg). The difference among cultivars for fatty acids composition was detected for C16:1, C17:0, C18:1, C18:2, and the ratio C18:1/C18:2. Krvavica oils showed clear differences in fatty acid composition compared to oils from other cultivars. The most prevalent volatile compound in all oils was C6 aldehyde E-2-hexenal, with the highest value detected in Levantinka oils (75.89%), followed by Lastovka (55.27%) and Oblica (54.86%). Oblica oils had the highest value of Z-3-hexen-1-ol, which influenced its characteristic banana fruitiness, detected only in this oil. Lastovka oils had the highest amount of several volatiles (heptanal, Z-2-heptenal, hexanal, hexyl acetate), with a unique woody sensation and the highest astringency among all studied cultivars. Levantinka oils had the highest level of almond fruitiness, while Krvavica oils had the highest level of grass fruitiness.
Collapse
Affiliation(s)
- Mirella Žanetić
- Institute of Adriatic Crops and Karst Reclamation, Put Duilova 11, HR-21000 Split, Croatia;
| | - Maja Jukić Špika
- Institute of Adriatic Crops and Karst Reclamation, Put Duilova 11, HR-21000 Split, Croatia;
- Centre of Excellence for Biodiversity and Molecular Plant Breeding (CoE CroP-BioDiv), Svetošimunska Cesta 25, HR-10000 Zagreb, Croatia
| | - Mia Mirjana Ožić
- Education and Teacher Training Agency, Tolstojeva 32, HR-21000 Split, Croatia;
| | | |
Collapse
|