Diospyros kaki
What's the taxonomical classification of Diospyros kaki?
Diospyros kaki belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it falls under the class Equisetopsida and the subclass Magnoliidae. Moving further down the taxonomic hierarchy, it is placed in the order Ericales and belongs to the family Ebenaceae. Finally, the plant is categorized under the genus Diospyros, with its specific designation being the species kaki.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Ericales |
| Family | Ebenaceae |
| Genus | Diospyros |
| Species | kaki |
What are the morphological characteristics of this plant?
Diospyros kaki has simple, entire, and opposite leaves that are oblong to ovate in shape with a leathery texture and a glossy dark green upper surface. These leaves are typically arranged in pairs along the woody stems and possess short petioles. The plant is a deciduous tree that can reach significant heights, characterized by smooth, greyish bark. During the flowering stage, it produces small, bell-shaped, cream-colored flowers that grow in clusters. The most distinctive morphological feature is the large, fleshy, globose fruit which transitions from green to a bright orange color upon ripening.
What is the geographical distribution of this plant?
This plant is native to East Asia, specifically spanning the regions of China, Japan, Korea, and parts of Southeast Asia. While its ancestral roots are firmly planted in these temperate and subtropical zones, it has been widely naturalized across many other parts of the world. Cultivation has spread to much broader areas including North America, Europe, and various Mediterranean climates due to its popularity as a fruit tree. Because it thrives in diverse environments, you can find it growing in both domestic gardens and commercial orchards across multiple continents. This global distribution is primarily a result of human agricultural efforts rather than natural seed dispersal.
How is this plant cultivated?
This plant, commonly known as the persimmon, requires well-drained loamy soil and full sun exposure to produce high-quality fruit.
Growers should plant these trees in temperate regions where they can undergo a necessary period of winter dormancy. Regular deep watering is essential during the early years of establishment and throughout the summer growing season to prevent fruit splitting. Mulching around the base of the tree helps maintain consistent soil moisture and suppresses competing weeds.
Pruning during the dormant season assists in maintaining tree structure and improving airflow through the canopy.
What parts of this plant are used medicinally?
This plant Diospyrpyos kaki provides medicinal benefits through its fruit, leaves, peel, roots, and seeds. The fruit is often consumed to provide essential vitamins and antioxidants that support overall health. Leaves are frequently utilized in traditional remedies to treat various ailments due to their specific chemical compounds. The peel and seeds contain bioactive substances that researchers study for potential therapeutic applications. Additionally, the roots are sometimes employed in folk medicine to address specific systemic issues.
According to a study published by "Journal of medicinal food", the fruit aqueous extract of Diospyros kaki (DKFAE) is used for its antimicrobial and antioxidant properties. This extract was tested on 60 male rats divided into 6 groups of 10 animals each to study its effects against castor oil-induced diarrhea. The DKFAE was administered at doses of 100, 200, and 400 mg/kg, b.w., p.o., while loperamide was used at 10 mg/kg, b.w., p.o. Analysis through LC-ESI-MS identified 16 phenolic compounds, with quinic acid being the main one. The study suggests that Diospyros kaki fruit provides a strong protective effect against acute diarrhea and counteracts oxidative stress deregulation.
The parts of this plant that are ued medicinally are shown in the list below.
- fruit
- leaf
- peel
- roots
- seed
What traditional systems uses this plant?
This plant Diospyros kaki has been utilized for centuries within Traditional Chinese Medicine to treat various ailments through its fruit, leaves, and bark. Practitioners historically employed the fruit to address digestive issues and to nourish the blood. The leaves were frequently used in decoctions to help manage inflammation or to treat skin conditions. In some regional traditions, the bark served as a remedy for clearing heat and resolving toxins from the body. These long-standing practices highlight the plant's significant role in historical botanical pharmacology.
According to a study published by "Journal of ethnopharmacology", Diospyros kaki leaves, known as Shi Ye in Chinese, have a long history as a Chinese traditional medicine. These leaves have been used for the treatment of ischemia stroke, angina, internal hemorrhage, hypertension, atherosclerosis, and some infectious diseases. In addition to medicinal uses, they are used as healthy products and cosmetics which have become increasingly popular in Asian countries such as Japan, Korea, and China. The leaves contain main compositions including flavonoids and terpenoids. Scientific studies on extracts and formulations have revealed various pharmacological activities, including antioxidative, hypolipidemic, antidiabetic, antibacterial, and hemosstasis activities.
The hystorical systems that uses this plant are shown in the list below.
- Traditional Chinese Medicine
What are the pharmacological activities of Diospyros kaki?
This plant has antibacterial, antimicrobial, antioxidant, anti-inflammatory, and anticancer pharmacological activities derived from its diverse bioactive compounds. Its antioxidant properties help neutralize free radicals, which protects cells from oxidative stress and potential damage. The antimicrobial and antibacterial effects allow the plant to inhibit the growth of various pathogenic microorganisms. Additionally, its anti-inflammatory actions can help reduce swelling and pain associated with different physiological conditions. Research also indicates that the plant possesses anticancer potential by targeting specific pathways in abnormal cell development.
According to a study published by "Journal of medicinal food", the aqueous extract of Diospyros kaki fruit (DKFAE) exhibits antioxidant, antibacterial, and antidiarrheal properties. An LC-ESI-MS analysis of the extract identified 16 phenolic compounds, with quinic acid being the main component. In an in vivo study using 60 male rats divided into 6 groups of 10 animals each, DKFAE was administered at doses of 100, 200, and 400 mg/kg b.w. p.o. The administration of DKFAE significantly decreased gastrointestinal transit in a dose-dependent manner and protected against castor oil-induced diarrhea and intestinal fluid accumulation. Furthermore, DKFAE pretreatment counteracted all oxidative stress status deregulation induced by castor oil intoxication.
The primary pharmacological activities of this plant are shown in the list below.
- Antibacterial
- Antimicrobial
- Antioxidant
- Anti-inflammatory
- Anticancer
What medicinal compounds this plant contains?
This plant contains medicinal compounds including persimmon tannin, proanthocyanidins, ursolic acid, kaempferol, and quercetin. These specific bioactive substances provide the fruit with significant antioxidant and anti-inflammatory properties. Persimmon tannin and proanthocyanidins are particularly noted for their ability to scavenge free radicals within the body. Additionally, the presence of ursolic acid contributes to potential metabolic and skin health benefits. Finally, the flavonoids kaempferol and quercetin support overall cellular protection against oxidative stress.
According to a study published by "Toxicon : official journal of the International Society on Toxinology", Japanese workers have described the antihaemorrhagic effect of persimmon tannin from Diospyros kaki. This specific plant is noted for containing these medicinal compounds. The study mentions these findings within the context of research regarding plants with a reputation against snakebite. No other specific numbers or additional medicinal data for Diospyros kaki were provided in the text.
The primary medicinal compounds of this plant are shown in the list below.
- persimmon tannin
- proanthocyanidins
- tannins
- ursolic acid
- kaempferol
What health conditions is this plant used for?
This plant is used for managing Alzheimer's disease, diabetes, diarrhea, hypercholesterolemia, and hypertension. The fruit and leaves contain bioactive compounds that help regulate blood glucose levels in diabetic patients. Its antioxidant properties are often studied for their potential to protect neurological functions in those facing Alzheimer's. Additionally, the plant can assist in lowering high cholesterol and managing blood pressure to combat hypertension. Certain components also work to soothe the digestive tract and treat cases of diarrhea.
According to a study published by "Molecules (Basel, Switzerland)", the seeds of Diospyros kaki cultivars can be used for the treatment of neurodegenerative diseases such as Alzheimer's. These seeds act as bioactive natural antioxidants and AChE inhibitors to address oxidative stress and acetylcholinesterase inhibition. Specifically, the PC4 cultivar demonstrated a moderate AChE inhibition activity of 67.34% ± 1.8%. The seeds also contain free amino acids ranging from 2617.31 μg∙g(-1) in PC2 to 3773.01 μg∙g(-1) in PC4. Furthermore, the organic acid content in these seeds varied from 2498 mg∙kg(-1) in PC2 to 4212 mg∙kg(-1) in PC4.
The main health conditions this plant is used for are shown in the list below.
- Alzheimer's
- diabetes mellitus
- diarrhea
- neurodegenerative diseases
- cardiovascular diseases
What are the herbal preparations of this plant?
This plant is Diospyros kaki, a species used to produce medicinal preparations such as 70% ethanol extracts, aqueous extract, and ethyl acetate fraction. Researchers often focus on these specific solvent-based extractions to isolate bioactive compounds for therapeutic use. The kaki calyx is another significant part of the plant utilized in various traditional and experimental herbal formulations. Additionally, persimmon tannin serves as a concentrated medicinal component known for its unique chemical properties. These different preparations allow for the targeted study and application of the plant's diverse phytochemical profile.
According to a study published by "Journal of medicinal food", Diospyros kaki fruit aqueous extract (DKFAE) was studied for its protective effects against castor oil-induced diarrhea. In an in vivo study involving 60 male rats divided into 6 groups of 10 animals each, various doses of DKFAE were administered at 100, 200, and 400 mg/kg body weight. Analysis via liquid chromatography-electrospray ionization mass spectrometry identified 16 phenolic compounds within the extract, with quinic acid being the main one. The DKFAE was found to be rich in tannins and demonstrated significant antioxidant and antibacterial activities. Administration of the extract significantly decreased gastrointestinal transit in a dose-dependent manner and protected against intestinal fluid accumulation.
The main herbal preparations of this plant are shown in the list below.
- 70% ethanol extracts
- aqueous extract
- ethyl acetate fraction
- kaki calyx
- persimmon tannin
What side effects this plant can have?
This plant can cause digestive distress such as vomiting if the fruit is consumed while it is still unripe and contains high levels of soluble tannins. These tannins react with salivary proteins and stomach acid to create a gritty, astringent sensation in the mouth and throat. Ingesting unripe persimmons can lead to the formation of a hard mass called a bezoar in the digestive tract. This blockage can result in severe abdominal pain and may require medical intervention to resolve. Therefore, it is essential to ensure the fruit is completely soft and ripe before eating it to avoid these complications.
According to a study published by "BMC complementary and alternative medicine", Diospyros kaki is a plant with great medicinal potentials used in treating bed-wettings, vomiting, and hiccuping. The kaki calyx is a traditional Korean medicine made from the stalks of astringent D. kaki. In this study, stage 1 samples representing the 8-9 month maturity period showed the highest inhibition of nitric oxide production. All extracts tested were found to be nontoxic under a 100 μg/ml concentration. The results demonstrated that decreases in the expression of iNOS and phosphorylated p65 were dose-dependent.
The main side effects this plant can have are shown in the list below.
- vomiting
What herbs are paired with Diospyros kaki?
This plant Diospyros kaki, commonly known as the persimmon, pairs exceptionally well with warm aromatic herbs such as cinnamon, clove, and star anise to enhance its natural sweetness.
These spicy elements complement the honey-like notes of ripe fruit, especially when used in baked desserts or preserves. Ginger also serves as a functional pairing, adding a sharp brightness that balances the dense texture of the fruit. For savory applications, fresh mint or basil can provide a refreshing contrast to the deep, sugary profile of the persimmon.
Using these herbal combinations helps to elevate the complexity of the plant's unique flavor profile in various culinary preparations.