scholarly journals Characterization and Botanical Differentiation of Monofloral and Multifloral Honeys Produced in Cyprus, Greece, and Egypt Using Physicochemical Parameter Analysis and Mineral Content in Conjunction with Supervised Statistical Techniques

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Ioannis K. Karabagias ◽  
Artemis P. Louppis ◽  
Stavros Kontakos ◽  
Chryssoula Drouza ◽  
Chara Papastephanou
Keyword(s):  
Inductively Coupled Plasma ◽  
Physicochemical Parameters ◽  
Mineral Content ◽  
Quality Criteria ◽  
Parameter Analysis ◽  
Physicochemical Parameter ◽  
Emission Spectrometry ◽  
Statistical Techniques ◽  
Classification Rate ◽  
Linear Discriminant

Thirty-four honey samples donated by beekeepers and purchased from supermarkets were collected during harvesting years 2010–2014 from Cyprus, Greece, and Egypt. The aims of this study were to characterize honey samples and, if possible, to differentiate honeys according to the honey type on the basis of physicochemical parameter values, mineral content, and their combination using supervised statistical techniques (linear discriminant analysis (LDA)). Physicochemical parameters (colour, pH, free acidity, total dissolved solids, salinity, electrical conductivity, and moisture content) were determined according to official methods, while minerals (Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, P, Pb, Sb, Si, Ti, Tl, V, and Zn) using inductively coupled plasma optical emission spectrometry. The majority of honey samples analyzed met the quality criteria set by the European directive and national decision related to honey. Implementation of multivariate analysis of variance (MANOVA) and LDA on specific physicochemical parameters, minerals, or their combination provided a satisfactory classification of honeys according to floral type. The overall correct classification rate (based on the cross-validation method) was 79.4% using 7 minerals and 91.2% using 8 physicochemical parameters. When the 15 parameters were combined, the classification rate of Egyptian honeys was improved by 25%.

scholarly journals Using Chemometric Analyses for Tracing the Regional Origin of Multifloral Honeys of Montenegro

Foods ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 210 ◽  
Author(s):  
Vesna Vukašinović-Pešić ◽  
Nada Blagojević ◽  
Snežana Brašanac-Vukanović ◽  
Ana Savić ◽  
Vladimir Pešić
Keyword(s):  
Industrial Pollution ◽  
Physicochemical Parameters ◽  
Mineral Content ◽  
Cross Validation ◽  
Classification Rate ◽  
Linear Discriminant ◽  
Allowable Level ◽  
Regional Origin ◽  
Maximum Allowable Level

This is the first study of mineral content and basic physicochemical parameters of honeys of Montenegro. We examined honey samples from eight different micro-regions of Montenegro, and the results confirm that, with the exception of cadmium in samples from two regions exposed to industrial pollution, none of the 12 elements analyzed exceeded the maximum allowable level. The samples from areas exposed to industrial pollution were clearly distinguished from samples from other regions of Montenegro in the detectable contents of Pb, Cd, and Sr. This study showed that chemometric techniques might enhance the classification of Montenegrin honeys according to their micro-regional origin using the mineral content. Linear discriminant analysis revealed that the classification rate was 79.2% using the cross-validation method.

scholarly journals Two-Way Characterization of Beekeepers’ Honey According to Botanical Origin on the Basis of Mineral Content Analysis Using ICP-OES Implemented with Multiple Chemometric Tools

Foods ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 210 ◽  
Author(s):  
Artemis Panormitis Louppis ◽  
Ioannis Konstantinos Karabagias ◽  
Chara Papastephanou ◽  
Anastasia Badeka
Keyword(s):  
Content Analysis ◽  
Discriminant Analysis ◽  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Stepwise Discriminant Analysis ◽  
Botanical Origin ◽  
Icp Oes ◽  
Linear Discriminant

Asfaka, fir, flower, forest flowers and orange blossom honeys harvested in the wider area of Hellas by professional beekeepers, were subjected to mineral content analysis using inductively coupled plasma optical emission spectrometry (ICP-OES). The main purpose of this study was to characterize the mineral profile and content of toxic metals such as lead, cadmium and chromium, and investigate whether specific minerals could assist accurately in the botanical origin discrimination with implementation of chemometrics. Twenty-five minerals were identified (Ag, Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Pb, Sb, Se, Si, Ti, Tl, V, Zn) and quantified. Results showed that the mineral content varied significantly (p < 0.05) according to honey botanical origin, whereas lead, cadmium, and chromium contents ranged between 0.05–0.33 mg kg−1, <0.05 mg kg−1, and in the range of <0.12 to 0.39 mg kg−1, respectively. Fir honeys from Aitoloakarnania region showed the highest mineral content (182.13 ± 71.34 mg kg−1), while flower honeys from Samos Island recorded the highest silicon content (16.08 ± 2.94 mg kg−1). Implementation of multivariate analysis of variance (MANOVA), factor analysis (FA), linear discriminant analysis (LDA), and stepwise discriminant analysis (SDA) led to the perfect classification (100%) of these honeys according to botanical origin with the use of Al, As, Ca, Mg, Mn, Ni, Pb, Sb, Si, Zn and total mineral content. However, the higher lead content in the majority of samples than the regulated upper limit (0.10 mg kg−1), sets the need for further improvements of the beekeepers’ practices/strategies for honey production.

Botanical discrimination of Greek unifloral honeys based on mineral content in combination with physicochemical parameter analysis, using a validated chemometric approach

2017 ◽  
Vol 135 ◽  
pp. 180-189 ◽  
Author(s):  
Artemis Panormitis Louppis ◽  
Ioannis Konstantinos Karabagias ◽  
Stavros Kontakos ◽  
Michael George Kontominas ◽  
Chara Papastephanou
Keyword(s):  
Mineral Content ◽  
Parameter Analysis ◽  
Physicochemical Parameter ◽  
Chemometric Approach

scholarly journals The Mineral Composition of Date Palm Fruits (Phoenix dactylifera L.) under Low to High Salinity Irrigation

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7361
Author(s):  
Rania Dghaim ◽  
Zied Hammami ◽  
Rola Al Ghali ◽  
Linda Smail ◽  
Dalia Haroun
Keyword(s):  
Mineral Composition ◽  
United Arab Emirates ◽  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Date Palm ◽  
High Salinity ◽  
Emission Spectrometry ◽  
Environment Interaction ◽  
Salinity Levels ◽  
Palm Fruits

Adaptability to salinity varies between different varieties of date palm trees. This research aims to explore the long-term impact of different salinity irrigation levels on the mineral content of 13 date palm varieties grown in the United Arab Emirates (UAE). Date varieties were grown using three irrigation water salinity levels of 5, 10 and 15 dS m−1. The mineral composition (B, Ca, Cu, Fe, K, Mg, Na, P and Zn) of date palm fruits was determined using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). High salinity levels showed no effect on the mineral content of Ajwat AlMadinah, Naghal, Barhi, Shagri, Abu Maan, Jabri, Sukkari and Rothan varieties. All date varieties remained good sources of dietary potassium, magnesium, manganese and boron even at high salinity levels. Increased salinity had no effect on the percent Daily Value (%DV) categories of most of the analyzed minerals. While no genotypes showed a general adaptation to different saline environments, Barhi, Ajwat Al Madinah, Khinizi, Maktoumi and Shagri varieties were more stable towards salinity variation. In the UAE, the genotype x saline-environment interaction was found to be high which makes it impossible to attribute the variation in mineral content to a single varietal or salinity effect.

scholarly journals Traceability of the geographical origin of Siraitia grosvenorii based on multielement contents coupled with chemometric techniques

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiao-Ping Huang ◽  
Lei Lei ◽  
Shun-Xin Lei ◽  
Wei-Wei Zhu ◽  
Jun Yan
Keyword(s):  
Inductively Coupled Plasma ◽  
Geographical Origin ◽  
Principal Component ◽  
Emission Spectrometry ◽  
Support Vector ◽  
Linear Discriminant ◽  
Protected Designation Of Origin ◽  
Siraitia Grosvenorii ◽  
Discrimination Rate ◽  
Chemometric Techniques

AbstractSiraitia grosvenorii (LHG) is widely used as a medicinal and edible material around the world. The objective of this study was to develop an effective method for the authentication of the geographical origin of LHG in its main producing area Guangxi, China, which is identified as Chinese Protected Designation of Origin product, against other producing regions in China. The content of 14 elements (K, Na, Ca, P, Mg, Al, B, Ba, Cu, Fe, Mn, Ni, Zn, and Sr) of 114 LHG samples was determined by inductively coupled plasma optical emission spectrometry. Multivariate analysis was then performed to classify the geographical origin of LHG samples. The contents of multielement display an obvious trend of clustering according to the geographical origin of LHG samples based on radar plot and principal component analysis. Finally, three supervised statistical techniques, including linear discriminant analysis (LDA), k-nearest neighbours (k-NN), and support vector machine (SVM), were applied to develop classification models. Finally, 40 unknown LHG samples were used to evaluate the predictive ability of model and discrimination rate of 100%, 97.5% and 100% were obtained for LDA, k-NN, and SVM, respectively. This study indicated that it is feasible to attribute unknown LHG samples to its geographical origin based on its multielement content coupled with chemometric techniques.

scholarly journals The effect of collecting area on the element content of Hungarian acacia honeys

2018 ◽  
pp. 129-138
Author(s):  
Nikolett Czipa ◽  
Andrea Kántor ◽  
Loránd Alexa ◽  
Béla Kovács
Keyword(s):  
Inductively Coupled Plasma ◽  
Geographical Origin ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Linear Discriminant ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Plasma Optical Emission Spectrometry ◽  
One Way Anova

Six macroelements and twelve microelements were identified in thirty-six Hungarian acacia honeys collected from ten counties by inductively coupled plasma optical emission spectrometry (ICP-OES) and inductively coupled plasma mass spectrometry (ICP-MS). One-Way ANOVA (LSD and Dunnett T3 test) and linear discriminant analysis (LDA) were used to determine the statistically verified differences among the honey samples with different geographical origin. Significant differences were established among the samples from different counties in Na, P, S, Fe, Ni, Cu and Sr concentrations. Based on the macroelement content of honeys, the separation of samples with different geographical origin was not successful because the percent of correctly categorised cases was only 64.9%. However, examining the As, B, Ba, Cu, Fe Mn, Ni and Sr concentration, the separation of different groups was convincing since the percent of correctly classified cases was 97.2%. Thus, the examination of microelement concentration may be able to determine the geographical origin of acacia honeys.

scholarly journals Pulp yield and mineral content of commercial hybrids of yellow passion fruits

2012 ◽  
Vol 15 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Daiva Domenech Tupinambá ◽  
Ana Maria Costa ◽  
Kelly de Oliveira Cohen ◽  
Norma Santos Paes ◽  
Fábio Gelape Faleiro ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Scientific Literature ◽  
The Other ◽  
Emission Spectrometry ◽  
Pulp Yield ◽  
Physical Parameters ◽  
Plasma Atomic Emission Spectrometry ◽  
Mineral Contents ◽  
Food Composition Tables

Physical analyses and an analysis of the mineral content were carried out by peroxide-perchloric wet-digestion, taking readings using inductively coupled plasma-atomic emission spectrometry (ICP-AES) and measurements using an analytical balance and digital paquimeter, of three commercial hybrids of Passiflora edulis f. flavicarpa Deg.: BRS Sol do Cerrado, BRS Ouro Vermelho and BRS Gigante Amarelo, cultivated and harvested from the experimental area of Embrapa Cerrados, Planaltina, DF, Brazil, in October/2007. Eighteen fruits were evaluated for each hybrid, and presented weights and dimensions superior to those found in the scientific literature, without significant differences between the hybrids. Sol do Cerrado showed less weight loss post storage when compared to the other hybrids, but no significant differences were found with respect to the other physical parameters studied. The mineral contents found in the hybrids were higher than the values found in the scientific literature and in the Brazilian food composition tables (TACO) elaborated by NEPA-UNICAMP. The Sol do Cerrado had a higher iron content than the other hybrids. The hybrids are excellent sources of minerals, especially in comparison with the frozen pulp sold in supermarkets.

Topic: chemical compositions and mineral content of four selected South African herbal teas and the synergistic response of combined teas

2020 ◽  
Vol 122 (9) ◽  
pp. 2769-2785
Author(s):  
Florence Malongane ◽  
Lyndy Joy McGaw ◽  
Fhatuwani Nixwell Mudau
Keyword(s):  
South African ◽  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Colorimetric Assay ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Total Phenolic ◽  
Chemical Compositions ◽  
Content Type ◽  
Rooibos Tea

PurposeThe present study was carried out to determine (1) essential minerals, total polyphenols, total flavonoids, moisture and ash of four selected South African herbal teas and (2) the effect of blending bush tea with other known commercial herbal teas.Design/methodology/approachThe method used to determine moisture and ash contents followed that of the Association of Official Analytical Chemists (AOAC). Nine minerals were analyzed using inductively coupled plasma optical emission spectrometry (ICP-OES). The total phenolic and flavonoid contents were determined by Folin–Ciocalteu assay and aluminum chloride colorimetric assay, respectively.FindingsThe results of the study demonstrated that bush tea had a high ash content of 8.01% and special tea (9.23%), while honeybush (1.96%) and rooibos tea (2.17%) exhibited a low ash percentage. The mineral content was higher in bush tea and special tea than in rooibos tea and honeybush tea except for sodium, which was higher in rooibos tea. The blending of bush tea with special tea improved its potassium content from 22,937.00 mg/kg to 23,379.20 mg/kg. Blending bush tea with rooibos tea at a ratio of 25:75 increased the flavonoid content to 12.21 µg/mL.Research limitations/implicationsThe results of the nutrients composition cannot be generalized as it is influenced by other factors such as soil type and seasons.Social implicationsIncreasing the commercialization of indigenous teas.Originality/valueThe results of the study suggest that bush tea and special tea are nutritionally comparable with South African commercial herbal teas. Thus, the consideration for commercialization of these teas is crucial.

Mineral Content as a Tool for the Assessment of Honey Authenticity

2017 ◽  
Vol 100 (4) ◽  
pp. 862-870 ◽  
Author(s):  
Milica Jovetić ◽  
Jelena Trifković ◽  
Dalibor Stanković ◽  
Dragan Manojlović ◽  
Dušanka Milojković-Opsenica
Keyword(s):  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Geographical Origin ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Botanical Origin ◽  
Inductively Coupled ◽  
Acacia Honey ◽  
Regional Origin ◽  
Plasma Optical Emission Spectrometry

Abstract The present work aims to provide a contribution to the overall investigation of European unifloral honeys with regard to authentication according to botanical and geographical origins. The mineral content of 206 monofloral honey samples of five botanical origins from six different regions in Serbia was investigated by inductively coupled plasma optical emission spectrometry. Chemometric techniques were applied for the classification and differentiation of acacia, sunflower, and linden honey according to botanical origin, as well as acacia honey samples according to regional origin. The highest influence on the differentiation of acacia honey samples was the presence of siderophile and chalcophile elements, whereas sunflower and linden honeys were determined by the presence of lithophile elements, indicating their origin from soil. However, due to the different bioaccumulation properties of plants, the presence of elements is not necessarily directly correlated to their presence in soil, which is confirmed by the results of the authentication of geographical origin of acacia honey.

scholarly journals Fatty Acid Profile and Mineral Content of Commercial Table Olives from Turkey

2013 ◽  
Vol 41 (2) ◽  
pp. 518 ◽  
Author(s):  
Vildan UYLASER ◽  
Gökçen YILDIZ
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Inductively Coupled Plasma ◽  
Mineral Content ◽  
Saturated Fatty Acids ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Table Olives ◽  
Table Olive ◽  
High Level

In this study, five different types of commercial table olive: Domat, Kalamata, Edremit (green), Edremit (black) and Gemlik, from Turkey, were investigated for the fatty acid composition and mineral content. Fatty acid analyses were performed by capillary gas chromatography. The fatty acid results showed that all table olives characterized by high level of were oleic acid (C18:1, 57.473-72.294%), linoleic acid (C18:2, 7.914-25.279%) and palmitic acid (C16:0, 9.735-16.441%). Moreover, in terms of the unsaturated oil content and a ratio of polyunsaturated fatty acids (PUFA) to saturated fatty acids (SFA) value, Kalamata olives were found to be more advantageous as compared to the other table olive types. The sodium (Na), magnesium (Mg), calcium (Ca), phosphorus (P), iron (Fe) and potassium (K) content of table olives were measured by inductively coupled plasma optical emission spectrometry (ICP-OES). Na was the most concentrated mineral detected (6637.722-20613.666 mg/kg), followed by K (2814.296-3386.520 mg/kg) and Ca (342.595-742.894 mg/kg). Results showed that there are differences among the fatty acid and mineral content of the commercial table olives depending on type.

Sign in / Sign up

Export Citation Format

Share Document