The Hidden Treasures in Tropical Fruits: A Dive into Essential Minerals

Oct. 18, 2023 by Ava Green

The Hidden Treasures in Tropical Fruits

Tropical fruits, with their vibrant colors and tantalizing flavors, have always been a favorite for many. Originating from tropical and subtropical regions, these fruits are not just a treat for the taste buds but also a powerhouse of essential nutrients.

A recent study conducted by Antoanela Cozma and her team from the University of Life Sciences “King Michael I” from Timisoara, Romania, sheds light on the mineral richness of these fruits and their significance for human health.

The Study's Objective

The primary aim of this research was to determine the concentration of some essential macro and micro elements in tropical fruits and understand the role these minerals play in health benefits. The fruits analyzed in the study included bananas, grapefruits, kiwi, lemons, mandarins, oranges, pineapples, and pomelo.


The fruits were procured from local markets in Timișoara. For each fruit variety, three samples were prepared for analysis. The mineral elements were determined in two steps: mineralization by calcination followed by solubilization of the inorganic matter in 0.5 M HNO3. The concentrations of the minerals were then determined using a flame atomic absorption spectrometry method.


The results revealed a non-uniform distribution of essential mineral elements across the analyzed fruits. The macro-elements, calcium (Ca) and magnesium (Mg), were found in the highest concentrations, ranging between 59.1-358 mg/kg for Ca and 92-287 mg/kg for Mg. Among the microelements, iron (Fe) was the most abundant, followed by zinc (Zn), copper (Cu), and manganese (Mn). These elements were present in sufficient amounts, considering their essential requirements in the human body.

For instance, bananas were found to have 59.1 mg/kg of Ca and 287 mg/kg of Mg, while pomelos had 332 mg/kg of Ca and 165 mg/kg of Mg. The study also highlighted that these tropical fruits, especially bananas, pineapples, and kiwis, are rich sources of essential microelements like Fe, Zn, Cu, and Mn.

Implications for Health

Tropical fruits are not just delicious but also nutritionally rich. They offer a plethora of health benefits, from providing essential minerals to aiding in the prevention of various diseases. For instance, calcium is vital for bone health, while magnesium plays a crucial role in muscle function. Iron is essential for transporting oxygen in the blood, and zinc is crucial for immune function.

The study underscores the importance of including tropical fruits in our diet. They not only complement the palette of bio-elements from local fruits but also serve as an additional supply of essential micro and macro elements.


Tropical fruits are more than just a sweet indulgence. They are a treasure trove of essential minerals that play a pivotal role in human health. So, the next time you enjoy a slice of pineapple or a juicy orange, remember you're not just satisfying your taste buds but also nourishing your body.

For a detailed understanding of the study, you can refer to the original research paper titled "DETERMINATION OF SOME ESSENTIAL MINERAL ELEMENTS FROM DIFFERENT TROPICAL FRUITS" published in the proceedings of the 28th International Symposium on Analytical and Environmental Problems. Read the full study here.