Antioxidant Activity, Total Phenolic Content, Individual Phenolics and Physicochemical Parameters Suitability for Romanian Honey Authentication
The present study aimed to evaluate the physicochemical characteristics of honey (raspberry, mint, rape, sunflower, thyme and polyfloral) produced in Romania. The honey samples were from the 2017 to 2018 harvest and were subjected to melissopalynological analysis, alongside the determination of the...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/9/3/306 |
| _version_ | 1811214476888768512 |
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| author | Daniela Pauliuc Florina Dranca Mircea Oroian |
| author_facet | Daniela Pauliuc Florina Dranca Mircea Oroian |
| author_sort | Daniela Pauliuc |
| collection | DOAJ |
| description | The present study aimed to evaluate the physicochemical characteristics of honey (raspberry, mint, rape, sunflower, thyme and polyfloral) produced in Romania. The honey samples were from the 2017 to 2018 harvest and were subjected to melissopalynological analysis, alongside the determination of the following physicochemical parameters: moisture content, pH, free acidity, electrical conductivity (EC), hydroxymethylfurfural (HMF) content, color, total polyphenols content (TPC), flavonoids content (FC), DPPH radical scavenging activity, phenolic acids, flavonols, sugars and organic acids in order to evaluate the usefulness of this parameters for the classification of honey according to botanical origin. The results of the melissopalynological analysis revealed that five types of honey samples had a percentage of pollen grains above the minimum of 45%, which was required in order to classify the samples as monofloral honey. The total polyphenols content reached the maximum value in the case of dark honey such as mint honey, followed by raspberry, thyme and polifloral honey. Fructose, glucose, maltose, sucrose, turanose, trehalose, melesitose, and raffinose were identified and quantified in all samples. Gluconic acid was the main organic acid in the composition of all honey samples. Principal component analysis (PCA) confirmed the possibility of the botanical authentication of honey based on these physicochemical parameters. |
| first_indexed | 2024-04-12T06:04:17Z |
| format | Article |
| id | doaj.art-b8f52f4672fb41328a60f244e29286b8 |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-04-12T06:04:17Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-b8f52f4672fb41328a60f244e29286b82022-12-22T03:44:55ZengMDPI AGFoods2304-81582020-03-019330610.3390/foods9030306foods9030306Antioxidant Activity, Total Phenolic Content, Individual Phenolics and Physicochemical Parameters Suitability for Romanian Honey AuthenticationDaniela Pauliuc0Florina Dranca1Mircea Oroian2Faculty of Food Engineering, Stefan cel Mare University of Suceava, 720225 Suceava, RomaniaFaculty of Food Engineering, Stefan cel Mare University of Suceava, 720225 Suceava, RomaniaFaculty of Food Engineering, Stefan cel Mare University of Suceava, 720225 Suceava, RomaniaThe present study aimed to evaluate the physicochemical characteristics of honey (raspberry, mint, rape, sunflower, thyme and polyfloral) produced in Romania. The honey samples were from the 2017 to 2018 harvest and were subjected to melissopalynological analysis, alongside the determination of the following physicochemical parameters: moisture content, pH, free acidity, electrical conductivity (EC), hydroxymethylfurfural (HMF) content, color, total polyphenols content (TPC), flavonoids content (FC), DPPH radical scavenging activity, phenolic acids, flavonols, sugars and organic acids in order to evaluate the usefulness of this parameters for the classification of honey according to botanical origin. The results of the melissopalynological analysis revealed that five types of honey samples had a percentage of pollen grains above the minimum of 45%, which was required in order to classify the samples as monofloral honey. The total polyphenols content reached the maximum value in the case of dark honey such as mint honey, followed by raspberry, thyme and polifloral honey. Fructose, glucose, maltose, sucrose, turanose, trehalose, melesitose, and raffinose were identified and quantified in all samples. Gluconic acid was the main organic acid in the composition of all honey samples. Principal component analysis (PCA) confirmed the possibility of the botanical authentication of honey based on these physicochemical parameters.https://www.mdpi.com/2304-8158/9/3/306honeyauthenticationphysicochemical parameterspca |
| spellingShingle | Daniela Pauliuc Florina Dranca Mircea Oroian Antioxidant Activity, Total Phenolic Content, Individual Phenolics and Physicochemical Parameters Suitability for Romanian Honey Authentication Foods honey authentication physicochemical parameters pca |
| title | Antioxidant Activity, Total Phenolic Content, Individual Phenolics and Physicochemical Parameters Suitability for Romanian Honey Authentication |
| title_full | Antioxidant Activity, Total Phenolic Content, Individual Phenolics and Physicochemical Parameters Suitability for Romanian Honey Authentication |
| title_fullStr | Antioxidant Activity, Total Phenolic Content, Individual Phenolics and Physicochemical Parameters Suitability for Romanian Honey Authentication |
| title_full_unstemmed | Antioxidant Activity, Total Phenolic Content, Individual Phenolics and Physicochemical Parameters Suitability for Romanian Honey Authentication |
| title_short | Antioxidant Activity, Total Phenolic Content, Individual Phenolics and Physicochemical Parameters Suitability for Romanian Honey Authentication |
| title_sort | antioxidant activity total phenolic content individual phenolics and physicochemical parameters suitability for romanian honey authentication |
| topic | honey authentication physicochemical parameters pca |
| url | https://www.mdpi.com/2304-8158/9/3/306 |
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