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Nutraceutical potential and compositional diversity of underutilized Makran Date palm (Phoenix dactylifera L.) cultivars

This study systematically evaluates seven underutilized Makran date palm cultivars, revealing significant compositional diversity and high nutraceutical potential—particularly in Shengeskan, Muzawati, and Dandari—thereby highlighting their value for functional food innovation and global market integration.

Original authors: Kulsoom Baloch, Ashif Sajjad, Shaista Anjum, Zahoor Ahmed Bazai, Munib Ahmed Shafique, Sidra Nadeem, Waheed Ahmed Shah, Sohail Ahmed, Muhammad Javed Khan

Published 2026-06-26

📖 4 min read☕ Coffee break read

CC BY 4.0

Original authors: Kulsoom Baloch, Ashif Sajjad, Shaista Anjum, Zahoor Ahmed Bazai, Munib Ahmed Shafique, Sidra Nadeem, Waheed Ahmed Shah, Sohail Ahmed, Muhammad Javed Khan

Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). ✨ This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer

Imagine the Makran region of Pakistan as a vast, hidden treasure chest. Inside this chest aren't gold coins or jewels, but seven different types of date palms that most people have never heard of. While these dates are eaten locally, scientists hadn't really opened the chest to see what "superpowers" were hiding inside them until now.

This study is like a detailed nutritional treasure map. The researchers took seven specific, underused date varieties (named Halinee, Dandari, Shakari, Muzawati, Rabie, Shengeskan, and Zard Irani) and put them through a rigorous "health check-up" to see what they are made of and how they fight off bad stuff in the body.

Here is the breakdown of their findings, translated into everyday language:

1. The "Body Fuel" Check (Proximate Analysis)

Think of dates as energy bars made by nature. The researchers checked how much water, protein, fiber, and sugar each type contained.

The Hydration Hero: The Muzawati date was the juiciest, holding the most water (like a fresh grape compared to a raisin). It also had the most protein and "ash" (a measure of total minerals).
The Fiber & Fat Champion: The Shengeskan date was the toughest, containing the most fiber (great for digestion) and the highest amount of natural fats.
The Sugar King: The Shakari date was the sweetest powerhouse, packed with the highest amount of carbohydrates (energy).

2. The "Mineral Mine" (Elemental Analysis)

Dates are like little mineral mines. The researchers dug deep to find 16 different elements, from big ones like Potassium and Calcium to tiny trace ones like Zinc and Iron.

The Calcium & Magnesium Giant: Shengeskan was a mineral powerhouse, holding the highest levels of Calcium (good for bones) and Magnesium (good for muscles). It was also rich in Sulfur.
The Potassium Powerhouse: Muzawati was loaded with Potassium, the mineral that helps your heart beat and blood pressure stay steady. One serving of this date could provide a huge chunk of your daily potassium needs.
The Iron & Manganese Stars: Muzawati had the most Iron (essential for blood), while Dandari had the most Manganese (helps your body use sugar and fat).
The Zinc Source: Rabie was the top source of Zinc, which helps your immune system fight off germs.

3. The "Shield Builders" (Bioactive Compounds)

This is where the dates get their "superhero" status. The researchers looked for antioxidants—think of these as tiny bodyguards that protect your cells from rusting (oxidation) and damage.

The Phenolic Shield: Shakari and Muzawati had the highest levels of phenolic compounds. These are like a heavy-duty shield against inflammation and disease.
The Flavonoid & Vitamin E Squad:
- Halinee had the most Flavonoids (another type of shield).
- Halinee also had the most Alpha-tocopherol (a form of Vitamin E).
- Dandari had the most Beta-tocopherol.
- Rabie had the most Gamma-tocopherol.
- Analogy: Imagine Vitamin E as a team of three different bodyguards. Each date variety recruited a different "captain" to lead the team.
The "Rust-Buster" Test (Antioxidant Activity): The researchers tested how well these dates could stop "rust" (free radicals) in a lab. Shengeskan and Dandari were the champions, stopping nearly 79% and 77% of the rust, respectively.

4. The "Group Photo" (Statistical Analysis)

To make sense of all this data, the researchers used a computer tool called PCA (Principal Component Analysis). Imagine taking a photo of all seven dates and sorting them into groups based on their unique "personality."

The computer found that Muzawati, Shengeskan, Rabie, and Dandari stood out the most. They had the most unique and powerful combinations of nutrients and shields, making them the "all-stars" of the group.

The Bottom Line

This paper doesn't claim these dates will cure diseases in a hospital tomorrow. Instead, it simply says: "We found that these specific, local dates are incredibly rich in vitamins, minerals, and natural shields."

The study concludes that these underused dates are not just snacks; they are nutritional goldmines. They are so packed with good stuff that they could be turned into "functional foods"—foods that do more than just fill your stomach; they actively help keep your body healthy. The researchers suggest that if we start valuing these local varieties more, we could improve diets and create new health-focused products, but they emphasize that more testing is needed to prove exactly how they work inside the human body.

Technical Summary: Nutraceutical Potential and Compositional Diversity of Underutilized Makran Date Palm Cultivars

Problem Statement
The Makran division of Balochistan, Pakistan, possesses a diverse array of indigenous date palm (Phoenix dactylifera L.) cultivars that hold significant cultural and economic value for local communities. However, despite their daily consumption, the specific nutraceutical potential and compositional diversity of these underutilized cultivars remain systematically undocumented. While dates are generally recognized for their bioactive properties, the specific profiles of local varieties such as Halinee, Dandari, Shakari, Muzawati, Rabie, Shengeskan, and Zard Irani have not been characterized. This lack of data limits their integration into functional food markets and prevents the identification of specific cultivars with superior therapeutic or nutritional attributes.

Methodology
The study employed a comprehensive analytical approach to evaluate seven specific date palm cultivars collected from the Kech, Panjgur, and Gwadar districts of the Makran division.

Sample Preparation: Fruits were washed, dried at 70°C for 7–10 hours, and ground into a fine powder.
Proximate Analysis: Moisture, ash, crude protein, crude lipid, crude fiber, and total carbohydrates were quantified using standard protocols (AOAC, AACC, FAO).
Elemental Analysis: Sixteen elements were measured. Carbon, hydrogen, nitrogen, and sulfur were analyzed using an Organic Elemental Analyzer (Flash 2000). Thirteen other elements (Al, Ba, Ca, Cr, Fe, K, Mg, Mn, Ni, P, S, Sr, Zn) were quantified using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES).
Bioactive Compound Profiling: Total Phenolic Content (TPC) was measured via the Folin-Ciocalteu method; Total Flavonoid Content (TFC) was determined using a spectrophotometric method; and Tocopherol content ( $\alpha$ , $\beta$ , $\gamma$ ) was analyzed via HPLC with fluorescence detection.
Antioxidant Activity: DPPH radical scavenging activity was assessed using a UV-Visible spectrophotometer.
Statistical Analysis: Data were analyzed using ANOVA and Least Significant Difference (LSD) tests ( $p \leq 0.05$ ). Principal Component Analysis (PCA) was applied to identify compositional patterns and differentiate cultivars based on nutritional and bioactive profiles.

Key Results
The study revealed significant variability ( $p < 0.05$ ) across all parameters among the seven cultivars:

Proximate Composition:
- Moisture: Highest in Muzawati (44.80%); lowest in Shakari (29.00%).
- Ash: Highest in Muzawati (4.40%).
- Protein: Highest in Muzawati (4.80%).
- Lipid & Fiber: Highest lipid (1.73%) and crude fiber (4.00%) were found in Shengeskan.
- Carbohydrates: Highest in Shakari (64.30%).
Mineral Profile:
- Macro-elements: Muzawati exhibited the highest Potassium (K) content (8,598 mg/kg). Shengeskan showed the highest levels of Calcium (Ca: 789 mg/kg), Magnesium (Mg: 606 mg/kg), and Sulfur (S: 782 mg/kg).
- Micro-elements: Shengeskan had the highest Aluminum (54.47 mg/kg) and Strontium (16.69 mg/kg). Rabie contained the highest Zinc (6.12 mg/kg) and Nickel (1.23 mg/kg). Muzawati had the highest Iron (7.42 mg/kg), and Dandari the highest Manganese (7.91 mg/kg).
Bioactive Compounds and Antioxidant Activity:
- Phenolics: Shakari (72.32 mg GAE/100 g) and Muzawati (69.41 mg GAE/100 g) had the highest Total Phenolic Content.
- Flavonoids: Halinee exhibited the highest content (0.37 mg QE/100 g).
- Tocopherols: Halinee had the highest $\alpha$ -tocopherol (53.45 mg/kg); Dandari had the highest $\beta$ -tocopherol (61.42 mg/kg); and Rabie showed the highest $\gamma$ -tocopherol (99.57 mg/kg).
- Antioxidant Capacity: Shengeskan (78.90%) and Dandari (76.60%) demonstrated the highest DPPH radical scavenging activity.
Multivariate Analysis (PCA):
PCA identified distinct clustering patterns. Muzawati, Shengeskan, Rabie, and Dandari were identified as the most promising cultivars for nutritional and nutraceutical applications. Specifically, Muzawati was associated with high protein, fiber, and moisture, while Rabie and Shengeskan were linked to high antioxidant activity and specific mineral profiles.

Significance and Claims
The authors assert that these findings highlight the "exceptional nutritional and bioactive potential" of Makran date palm cultivars, which have previously been underutilized. The study positions these cultivars as promising candidates for:

Functional Foods and Nutraceuticals: The high levels of bioactive compounds (phenolics, tocopherols) and minerals suggest their utility in developing health-focused food products.
Dietary Diversity and Food Security: Integrating these local varieties into the global market could enhance dietary diversity and contribute to sustainable food security.
Regional Economic Growth: Documenting these profiles supports local agriculture and opens avenues for commercial exploitation.

The paper concludes that while the results are promising, further research is required to substantiate health benefits through bioavailability studies, in vivo efficacy trials, and clinical validation. The authors also suggest that a comprehensive evaluation of all parts of the date palm and advanced phytochemical characterization could further expand their commercial value.

1. The "Body Fuel" Check (Proximate Analysis)

2. The "Mineral Mine" (Elemental Analysis)

3. The "Shield Builders" (Bioactive Compounds)

4. The "Group Photo" (Statistical Analysis)

The Bottom Line

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