Hermetica Superfood Encyclopedia
The Short Answer
Pulasan (Nephelium mutabile) contains bioactive compounds including geraniin, chlorogenic acid, and corilagin that demonstrate ACE inhibition for anti-hypertensive effects and alpha-amylase inhibition for blood sugar control. The fruit's rind shows the highest concentration of these phenolic compounds with superior antioxidant activity compared to other plant parts.
CategoryFruit
GroupFruit
Evidence LevelStrong
Primary KeywordPulasan benefits
Synergy Pairings4
Health Benefits
Provides potent antioxidant protection via Vitamin C and phenolic compounds, neutralizing free radicals and reducing oxidative stress.
Enhances immune health by boosting resistance to infections and supporting white blood cell function.
Promotes digestive wellness through dietary fiber, aiding bowel regularity and nurturing a healthy gut microbiota.
Supports skin health and radiance with antioxidants and Vitamin A, preserving elasticity and minimizing dermal oxidative stress.
Contributes to metabolic regulation by supporting balanced blood sugar levels and improving glycemic control.
Aids liver detoxification processes, supporting the body's natural cleansing mechanisms.
Replenishes hydration and electrolytes, contributing to overall fluid balance and cellular function.
Origin & History
*Nephelium mutabile*, commonly known as Pulasan, is a tropical fruit tree native to the humid lowland rainforests of Malaysia, Indonesia, and the southern Philippines. A close botanical relative of rambutan, it yields vividly colored fruits with a thick rind and luscious, translucent flesh, prized for its unique flavor and nutritional density.
“Revered for generations across Malaysia, Indonesia, and the Philippines, Pulasan is a symbol of abundance, joy, and sweet purification. In Malay and Filipino traditions, it is consumed during festivals, gifted in abundance, and used to cool the body, lighten digestion, and bring radiance during seasonal transitions.”Traditional Medicine
Scientific Research
Ethnobotanical literature confirms Pulasan's traditional use in Southeast Asian diets and folk medicine. Modern nutritional analyses and preliminary studies highlight its rich content of vitamin C and polyphenols, supporting its antioxidant, digestive, and immune-enhancing functions. Further clinical research is ongoing to fully elucidate its therapeutic potential.
Preparation & Dosage
General
Traditionally consumed fresh, or fermented into tonics for fever reduction, digestion, and skin health.
General
Modern culinary uses include jams, jellies, syrups, sherbets, desserts, and tropical beverages.
General
Seeds are occasionally roasted and eaten as a snack.
Recommended dosage
100–150 g fresh fruit or 1–2 servings of fruit per day
Standardized extract dosage
500–1000 mg/day for targeted support
Nutritional Profile
- Carbohydrates: Natural sugars
- Dietary Fiber: Soluble fiber
- Vitamins: Vitamin C, Vitamin A
- Minerals: Potassium, Magnesium, Iron, Calcium
- Phytochemicals: Anthocyanins (e.g., cyanidin-3-glucoside), Gallic acid, Ellagic acid, Catechins
How It Works
Mechanism of Action
Pulasan's bioactive compounds, particularly geraniin, chlorogenic acid, catechin, and corilagin, exert anti-hypertensive effects through angiotensin-converting enzyme (ACE) inhibition, which reduces vasoconstriction and blood pressure. The same phenolic compounds demonstrate hypoglycemic activity by inhibiting alpha-amylase enzyme, thereby reducing carbohydrate digestion and post-meal glucose spikes. Ethanolic extracts show superior enzyme inhibition compared to water-based extracts due to better extraction of lipophilic bioactive compounds.
Clinical Evidence
Current evidence for pulasan is limited exclusively to in vitro laboratory studies with no human clinical trials available. Laboratory analyses confirm that ethanolic extracts of pulasan rind demonstrate superior ACE inhibition and alpha-amylase inhibition compared to water extracts, though specific IC50 values and quantified inhibition percentages have not been published. Nutritional analyses support the fruit's vitamin C and polyphenol content through DPPH, TEAC, and FRAP antioxidant assays. The therapeutic potential remains preliminary pending controlled human studies with standardized dosing protocols.
Safety & Interactions
No safety data, adverse effects, or drug interaction profiles have been established for pulasan in published literature. Patients taking ACE inhibitors or antidiabetic medications should exercise caution due to pulasan's potential ACE and alpha-amylase inhibitory effects, which could theoretically enhance these medications' effects. Pregnant and breastfeeding women should avoid therapeutic use due to absence of safety data. Individuals with known allergies to related fruits in the Sapindaceae family, such as rambutan or lychee, should use caution when consuming pulasan.
Synergy Stack
Hermetica Formulation Heuristic
Polyphenol/antioxidant base
Immune & Inflammation | Gut & Microbiome | Skin & Collagen | Cardio & Circulation
Also Known As
Nephelium mutabile BlumePulasan fruitWild rambutan
Frequently Asked Questions
What is the difference between pulasan and rambutan?
Pulasan (Nephelium mutabile) and rambutan are closely related tropical fruits, but pulasan has a thicker, less hairy rind and contains higher concentrations of bioactive compounds like geraniin and chlorogenic acid. Pulasan's rind shows superior antioxidant activity and enzyme inhibition compared to rambutan.
Which part of pulasan has the most health benefits?
The rind of pulasan contains the highest concentration of bioactive compounds including geraniin, chlorogenic acid, and corilagin. Ethanolic extracts of pulasan rind demonstrate the strongest antioxidant capacity and enzyme inhibitory effects compared to the flesh or other plant parts.
Can pulasan help with diabetes management?
Laboratory studies show pulasan rind extracts can inhibit alpha-amylase enzyme, which may help reduce post-meal blood sugar spikes by slowing carbohydrate digestion. However, no human clinical trials have been conducted to confirm these effects or establish safe dosing for diabetes management.
Is pulasan safe to eat regularly?
While pulasan fruit flesh is traditionally consumed in Southeast Asian diets, no formal safety studies exist for regular consumption or therapeutic use. The rind extracts showing bioactive effects have not been tested for long-term safety, drug interactions, or appropriate dosing in humans.
How does pulasan compare to other antioxidant fruits?
Pulasan rind shows high antioxidant activity in DPPH, TEAC, and FRAP laboratory assays due to its phenolic and flavonoid content. However, direct comparisons with established antioxidant fruits like blueberries or pomegranates require standardized testing protocols that have not been published for pulasan.
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