Aleko Givi Kalandia

Prof. Dr. Aleko Givi Kalandia

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 June 2018 in Annals of Agrarian Science
Verified
Journal Article
Open access
MKM. Kharadze
M. Kharadze
IJI. Japaridze
I. Japaridze
AKAleko Givi Kalandia
Aleko Givi Kalandia
MVM. Vanidze
M. Vanidze

14 July 2025 in Food Science & Nutrition
Verified
Journal Article
Open access
LDLana Datuashvili
Lana Datuashvili
MVMaia Vanidze
Maia Vanidze
IDIndira indira Djafaridze
Indira indira Djafaridze
NSNona Surmanidze
Nona Surmanidze
IKInga Kartsivadze
Inga Kartsivadze
AKAleko Givi Kalandia
Aleko Givi Kalandia
Sea buckthorn ( Hippophae rhamnoides L.), a wild berry abundant in Georgia, is a rich source of bioactive compounds, including antioxidants, fatty acids, and phenolic compounds, with significant potential for applications in food, nutraceutical, and cosmetic industries. Despite its traditional uses, the physicochemical properties and valorization potential of Georgian sea buckthorn remain underexplored. This study aimed to analyze the chemical composition of sea buckthorn berries from three distinct regions of Georgia (Adjara, Samtskhe‐Javakheti, and Imereti) and develop innovative, environmentally friendly extraction technologies to maximize the recovery of valuable compounds. Using advanced techniques such as ultrasound‐assisted extraction (UAE) and supercritical water extraction (SWE), alongside traditional methods like maceration and Soxhlet extraction, the study identified and quantified 18 bioactive compounds, including organic acids (malic and citric acid), phenolic acids (quinic acid), and flavonoids (e.g., gallocatechin, catechin, and isorhamnetin derivatives). The lipid fraction, predominantly composed of C18 fatty acids (57.4%–76.9%), was rich in linoleic acid (29.4%–50.0%), with extraction yields varying by method. Total phenolic content ranged from 19.90 to 34.94 mg/g dry weight, with higher levels in Samtskhe‐Javakheti and Imereti samples. The highest carotenoid content (3.363 mg/g dry weight) was observed in Samtskhe‐Javakheti berries. UAE with 75% ethanol optimized carotenoid (1.684 mg/g) and phenolic (8.213 mg/g) recovery, while SWE achieved 86% lipid yield and high phenolic content (92.25 mg/g) in just 7 min. Carotenoid‐enriched sunflower oil exhibited 3.5‐fold higher antioxidant activity than control oil, demonstrating enhanced oxidative stability. The study highlights the efficacy of green extraction methods in valorizing sea buckthorn by‐products, offering sustainable solutions for producing high‐value nutraceuticals and functional foods. These findings underscore the potential of Georgian sea buckthorn as a source of natural antioxidants and lipids, with applications in health‐promoting products.

6 August 2024 in Applied Sciences
Verified
Journal Article
Open access
PDF file
NANona Nona Abashidze
Nona Nona Abashidze
IDIndira indira Djafaridze
Indira indira Djafaridze
MVMaia Vanidze
Maia Vanidze
MKMeri Khakhutaishvili
Meri Khakhutaishvili
MKMaia Kharadze
Maia Kharadze
AKAleko Givi Kalandia
Aleko Givi Kalandia
The purpose of this research article was to study the physicochemical characteristics of semi-wild Jara honey grown in Western Georgia. Jara honey is produced in the alpine and sub-alpine forest zone of high mountain Adjara, which is distinguished by its variety of honey plants. The physicochemical characteristics were examined concerning the Alimemtarius Code and EU regulations: moisture content, total carbohydrates, free acidity, pH, electrical conductivity, microelements (Li, Na, K, Mg, Ca), color, total phenols, total phenolic acids, total flavonoids, proline, diastase activity, proteins, and microscopic study of pollens. Using the UPLC-MSB method, grayanotoxin-III was identified in the semi-wild Jara honey samples. The findings demonstrated that the honey has significant concentrations of phenols, phenolic acids, and flavonoids. A directly proportional relationship was established between the quantitative content of phenolic compounds and the antioxidant activity of honey. This article is the first study of the characteristics of Jara honey produced in Western Georgia.

28 June 2020 in Potravinarstvo Slovak Journal of Food Sciences
Verified
Journal Article
Open access
PDF file
DTDodo Tavdidishvili
Dodo Tavdidishvili
TKTsira Khutsidze
Tsira Khutsidze
MPManana Pkhakadze
Manana Pkhakadze
AKAleko Givi Kalandia
Aleko Givi Kalandia
MVMaia Vanidze
Maia Vanidze
Under the current adverse environmental conditions, enrichment of the human diet with essential nutrients, including antioxidants, which exhibit immunostimulatory and adaptogenic properties and protect the body against the negative effects of free radicals, is extremely relevant. Their use in food production, including that of semi-finished meat products, improves the quality of such products and extends their shelf life. It is of scientific and practical interest to enrich rabbit meat with the antioxidant-containing plant raw materials and to study their influence on the quality parameters of semi-finished products. In this work, modern, standard, commonly accepted methods of research were used to fulfill the stated objectives. Statistical processing of the results obtained and evaluation of the reliability of the data was carried out by statistical methods using IBM SPSS Statistics for Windows. This study demonstrates the expediency of using grape-seed powder, green tea extract, and amaranth/flax flour in semi-finished rabbit meat products. The optimum component composition and amount of multiple supplements to add to the semi-finished product were determined. The total phenolic and flavonoid content and antioxidant characteristics of the test samples were studied. The highest antioxidant potential was observed in samples with flax-containing multiple supplements. This paper demonstrates that microbiological indicators in all samples throughout the storage period, in line with hygienic requirements, were lower than those in semi-finished products containing multiple supplements as compared with a reference sample, while organoleptic indicators of quality were more stable. The content of toxic elements indicates the sanitary reliability of semi-finished products. Determination of the acid number and peroxide number values during storage revealed high resistance of semi-finished products containing multiple supplements to the accumulation of free fatty acids and peroxide compounds. The obtained data indicate the effectiveness of using developed semi-finished products as antioxidant products in the diet of the population.

25 September 2018 in CBU International Conference Proceedings
Verified
Journal Article
Open access
PDF file
NANona Abashidze
Nona Abashidze
MVMaia Vanidze
Maia Vanidze
MKMaia Kharadze
Maia Kharadze
IDIndira indira Djafaridze
Indira indira Djafaridze
AKAleko Givi Kalandia
Aleko Givi Kalandia
The present study was conducted to determine the content of four mineral elements in honeys originating from different regions of West Georgia. Sodium (Na), Potassium (K), Calcium (Ca), magnesium (Mg), and Ammonium (NH4+) were analyzed by HPLC-Conductivity, column “Cation” (3.9x150mm) solvent 0.1 mM EDTA 3mM HNO3, following the microwave digestion of the honey. High mineral contents were observed in the investigated honeys with K, Na, Ca and Mg being the most abundant elements with mean concentrations in Chestnut honey 5000-7000 ppm, 56-150 ppm, 40-230 ppm, 25-130 ppm, respectively. In Lime (Tilia) honey - 2400-2600 ppm, 30-50 ppm, 160-180 ppm, 45-60 ppm, Acacia honey 300-500 ppm, 35-45 ppm, 85-95 ppm, 15-25 ppm, Field honey -750-930 ppm, 35-45 ppm, 75-130 ppm, 25-35 ppm, Spring polyflora honey - 630-650 ppm, 45-50 ppm, 280-300 ppm, 25-35 ppm, Autumn polyflora Honey – 2500-3000 ppm, 80-100 ppm, 250-300 ppm, 80-100 ppm respectively. The correlation dependence was between the content of cations in the honey and conductivity (Chestnut honey 1.4 µs/cm, Lime (Tilia), honey 0.5 µs/cm, Acacia honey 0.16 µs/cm, Field honey 0.55 µs/cm, Spring polyflora honey 1.2 µs/cm, Autumn polyflora Honey 1.3 µs/cm)

26 June 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
NANona Nona Abashidze
Nona Nona Abashidze
IDIndira indira Djafaridze
Indira indira Djafaridze
MVMaia Vanidze
Maia Vanidze
MKMeri Khakhutaishvili
Meri Khakhutaishvili
MKMaia Kharadze
Maia Kharadze
AKAleko Givi Kalandia
Aleko Givi Kalandia
The purpose of this research article was to study the physicochemical characteristics of semi-wild Jhar honey grown in Western Georgia. Jara honey is produced in the alpine and sub-alpine forest zone of high mountain Adjara, which is distinguished by the variety of honey plants [1]. The physicochemical characteristics were examined concerning the Alimemtarius Code and EU regulations: moisture content, total carbohydrate, free acidity, pH , electrical conductivity, microelements (Li, Na, K, Mg, Ca), color, total phenols, total phenolic acids, total flavonoids, proline, diastase activity, protein and microscopic study of pollens. Using the UPLC-MSB method, grayanotoxin-III was identified in the semi-wild Jara honey samples. The findings demonstrated that honey has significant concentrations of phenols, phenolic acids, and flavonoids. A directly proportional relationship was established between the quantitative content of phenolic compounds and the antioxidant activity of honey. This article is the first study of the characteristics of Jara honey produced in Western Georgia.