1Department of Zoology, Rayat Institute of Research and Development, Satara 415001 (MS) India.
2Department of Zoology Krantiagrani Dr. G. D. Bapu Lad Mahavidyalaya, Kundal Sangli 416309 (MS) India.
The secondary metabolites present in medicinal plants are crucial for curing diseases and are also used as essential raw materials for the production of conventional and modern medicines. Garlic (Allium sativum, L.) is a bulbous annual flowering plant belonging to the family Liliaceae (Juss. 1789). Aqueous, Alcohol and Acetone extracts of garlic leaves and cloves were prepared using a Soxhlet apparatus. Phytochemical assays were carried out as per the standard protocol for the screening of phytochemical compounds. The phytochemical screening of aqueous, alcohol, and acetone extract showed the presence of glycosides, terpenoids flavonoids, phenols, carbohydrates, proteins, alkaloids, tannins, and flavanol. The alcoholic extract of cloves and leaves exhibited less compounds compared to Aqueous and Acetonic extracts. A review of literature suggests that components present in the extract are medically important and are used as antioxidant, radioprotective, antilipemic, antibiotic, antihypertensive, antiviral, antimicrobial, anticancer, immunomodulatory, anti-mutagenic, and anti-tumor effects.
A. sativum (Garlic) is bulbous plant with hermaphrodite flowers with white petals possesses a shallow adventitious root system. Its leaves are flat and resemble have circular leaves. The leaves resemble grass and are long. There are many seeds in the fruit. Its flowers have four white petals each. In April, garlic blossoms1. The bioactive phytochemical components present in some plant definitely produce physiological effects on human body2,3. Secondary metabolites found in medicinal plants are crucial in controlling several ailments and serve as vital raw materials for the production of both traditional and contemporary medicines4. By using phytochemical and physicochemical methods essential oils of the Allium sativum and Allium cepa were characterized5. More than 500 species of the Allium Genus bear various taste and have similar biochemical, phytochemical, and nutraceutical Properties6. The Phytochemical constituents of A. sativum has anticancer, antioxidant, anti-inflammatory, antibacterial, antithrombotic, hypocholesterolemic, hypoglycemic, and hypotensive properties and are used to prevent and treat a variety of illnesses, including cold and flu symptoms. This is achieved through immune enhancement. It also serves as a treatment for hypertension, diabetes, hyperlipidemia, atherosclerosis, and thrombosis. It also exerts antiplatelet activity, which prevents blood clots, stroke, and gastrointestinal neoplasia7. Researchers observed phytochemicals in garlic and showed various bioactive components are Glycosides, Alkaloids, Flavonoids, Steroids, Phenols, Terpenoids, Saponins, Carbohydrates, Proteins, Starch, Tannins, Flavanol and Anthocynin compounds8. Many vitamins, minerals, and trace elements can be found in fresh garlic, however most are present in very little amounts. Sulfur concentration is greater in garlic than in any other Allium species. Due to their detectable levels, germanium and selenium are two traces of the element proposed to show the anti-tumor activities of the herb9. The use of medicinal plants in disease management is flourishing because they are economical, environmentally safe, and have few negative effects. Herbs have long been utilized in both human and veterinary medicine.
2. MATERIAL AND METHODS:
2.1 Collection and Authentication of plant:
The (Garlic) A. sativum plant collected from a farm in Satara District, Maharashtra, India. The identification and authentication of plant was done at Department of Botany, Yashwantrao Chavan Institute of Science, Satara. (See fig.1 and Fig.2).
2.2 Preparation of Extract carried out by Soxhlet method.
The plants cloves and leaves were removed, cleaned, and air-dried under a canopy at room temperature for a few days. The shade dried leaves and cloves are grinded into a fine powder and stored in glass vials at room temperature. Using Soxhlet apparatus 20 gm of leaves and cloves powder in 200 ml of each extracted in required solvents Aqueous, Alcohol and Acetone10.Then plant extracts were concentrated using a high- speed evaporator and preserved in the refrigerator and used for phytochemical analysis screening11.
3. RESULTS AND DISCUSSION:
Preliminary phytochemical analysis of Aqueous, Alcohol and Acetone Cloves and Leaves extracts of Allium sativum were mentioned in Table :1
Table :1 Preliminary Phytochemical analysis of extracts of Allium sativum (Garlic) as follows:
Chemical Constituents |
Test |
Cloves extracts of Allium sativum (Garlic) |
Leaves extracts of Allium sativum (Garlic) |
||||
Aqueous |
Alcohol |
Acetone |
Aqueous |
Alcohol |
Acetone |
||
Glycosides |
Raymond’s |
- |
- |
+ |
- |
- |
- |
Keller killiani |
+ |
+ |
+ |
+ |
+ |
+ |
|
Legal’s |
+ |
+ |
- |
+ |
- |
+ |
|
Alkaloids |
Wagner’s |
- |
- |
- |
- |
- |
- |
Hager’s |
- |
- |
- |
- |
- |
- |
|
Mayer’s |
- |
- |
+ |
- |
- |
- |
|
Flavonoids |
Lead acetate solution |
+ |
+ |
+ |
+ |
+ |
+ |
Shinoda |
+ |
- |
- |
+ |
+ |
- |
|
Ferric chloride |
+ |
- |
- |
+ |
+ |
+ |
|
Zinc-Hydrochlori acid-reduction |
+ |
- |
- |
+ |
+ |
- |
|
Alkaline reagent |
- |
+ |
+ |
- |
+ |
+ |
|
Steroids |
Chloroform |
+ |
- |
+ |
+ |
+ |
+ |
|
Salkowski |
+ |
+ |
+ |
+ |
+ |
+ |
Sulphur |
- |
- |
- |
- |
- |
- |
|
Phenols |
Fecl3 |
+ |
+ |
- |
+ |
+ |
+ |
Terpenoids |
Salkowaski |
+ |
+ |
+ |
+ |
+ |
+ |
Liebermann Burchard |
+ |
- |
+ |
+ |
+ |
+ |
|
Biuret |
- |
+ |
+ |
- |
+ |
+ |
|
Ninhydrin |
- |
- |
- |
- |
- |
- |
|
Saponins |
Foam |
- |
- |
- |
- |
- |
- |
Raymond’s |
- |
- |
- |
- |
- |
- |
|
Carbohydrates |
Molisch’s |
+ |
+ |
+ |
+ |
+ |
+ |
Benedict’s |
- |
- |
+ |
- |
- |
- |
|
Leagal’s |
- |
- |
- |
+ |
- |
+ |
|
Proteins |
Xanthoproteic |
- |
- |
+ |
- |
- |
+ |
Millon’s |
- |
- |
- |
- |
+ |
+ |
|
Ninhydrin |
- |
- |
- |
- |
- |
- |
|
Starch |
Starch Reagent |
- |
- |
- |
- |
- |
- |
Tannins |
Gelatin |
- |
- |
+ |
- |
- |
- |
NaoH |
- |
- |
- |
- |
+ |
+ |
|
Flavanol |
Lead acetate solution |
+ |
+ |
+ |
+ |
+ |
+ |
Shinoda |
+ |
- |
- |
+ |
+ |
- |
|
Ferric chloride |
+ |
+ |
- |
+ |
+ |
- |
|
Alkaline reagent |
- |
- |
+ |
- |
+ |
+ |
|
Zinc-Hydrochloric acid-reduction |
+ |
- |
- |
+ |
+ |
- |
|
Anthocynin |
HCL |
- |
- |
- |
- |
- |
- |
+ Present - Absent
Fig. 3 PCA: Phytochemical analysis of Aqueous, Alcohol, and Acetone Cloves and Leaves extracts of Allium sativum (Garlic).
A principal component analysis (PCA) helps to reduce data dimentionality and easy visualize complex data. Further, it demonstrate how to characterise under the consideration related to one another and how that related to content separation during phytochemical analysis. Five of the main components (PCs) in this investigation had egenvalues greater than one, the variance seen among two plant parts and different three type solvent under 13 phytochemical parameter. The distribution of the two plant parts sampleunder study is depicted in the biplot (Fig.3) of the first two PCs, where PCs PC1 and PC2 have reported 74.20% and 16.75% variance of the original data, respectively. PC1 and PC2's combined percentage was 90.95%. Assessment of parameter loading was done to look into PC factors12. Preliminary Phytochemical investigation of Aqueous cloves extract of Allium sativum showed the presence of Glycosides, Flavonoids, Steroids, Phenols, Carbohydrates and Flavanol while in Alcoholic cloves extract of A. sativum showed the presence of Glycosides, Flavonoids, Steroids, Phenols, Terpenoids, Carbohydrates and Flavanol and Phytochemical analysis of Acetonic cloves extract of A. sativum showed the presence of Glycosides, Alkaloids, Flavonoids, Steroids, Terpenoids, Carbohydrates, Proteins, Tannins and Flavanol. Among these three solvents Acetonic extract showed the presence of more compounds as compared to Aqueous and Alcoholic extract. Preliminary phytochemical analysis of aqueous leaves extract of A. sativum indicates the presence of Glycosides, Flavonoids, Steroids, Phenols, Terpenoids, Carbohydrates, Flavanol while Alcoholic leaves extract of A. sativum showed the presence of Glycosides, Flavonoids, Steroids, Phenols, Terpenoids, carbohydrates, Proteins, Tannins and Flavanol and Phytochemical analysis of acetonic leaves extract of A. sativum showed the presence of Glycosides, Flavonoids, Steroids, Phenols, Terpenoids, carbohydrates, Proteins, Tannins and Flavanol. Among these three solvents alcoholic and acetonic extract showed the presence of more compounds as compared to aqueous extract in leaves. From the above result it has been observed that Preliminary phytochemical evaluation of Aqueous, Alcoholic and Acetonic cloves and leaves extract of A. sativum constitute Glycosides, Alkaloids, Flavonoids, Steroids, Terpenoids, Carbohydrates, Proteins, Tannins and Flavanol. A similar result were also observed by7. Hexane, Ethyl acetate, Methanol and Aqueous extract of Allium sativum contains Alkaloids, phenolics, Flavonoids, Steroids, glycosides and saponins, carbohydrates, terpenoids and tannins. Similar observations were also showed by13. Aqueous and Ethanol extract of A.sativum and C.longa consists of Saponins, alkaloids, tannin, Flavonoids, glycosides, lipids, ketones and phlobutanin. Various solvent extracts of A. sativum and A.cepa contains glycosides, alkaloids, Saponins, steroids, Flavonoids, phenols, tannins and Terpenoids8. Similar phytochemical observations were also noted by14. that Aqueous and Methanol extract of A. sativum possess anthraquinones, Saponins, triterpenes, Flavonoids, tannins, alkaloids and glycosides. Similar findings of phytochemical analysis of water, Ethanol and Acetone extracts of Allium sativum contains Reducing sugar, lipids, flavonoids, ketones, alkaloids, steroids and triterpenes15.
4. CONCLUSION:
From the above study it has been concluded that the constituents present in extracts of A. sativum are medically important and are used as Antioxidant, Radioprotective, Antilipemic, Antihypertensive, Antiviral, Antimicrobial, Anticancerous, Immunomodulatory, Anti- mutagenic effects and Anti- tumor. The research in this line is in progress in our laboratory.
5. Conflict Of Interest:
No other researchers have shown a conflict of-interest concern with our research.
6. ACKNOWLEDGEMENTS:
The authors are thankful to Mahatma Jyotiba Phule Research and Training Institute (MAHAJYOTI) for providing a fellowship to Geeta Ramesh Katkar under MJPRF-2022. The authors are also thankful to the Director, Principal Dr. B. T. Jadhav Rayat Institute of Research and Development, Satara for providing facilities to conduct the present research.
REFRENCES
G. R. Katkar*, R. S. Dubal, Studies on Phytochemical Analysis of Leaf & Clove Extract of Allium Sativum, Int. J. of Pharm. Sci., 2025, Vol 3, Issue 3, 2028-2033. https://doi.org/10.5281/zenodo.15062607