Review of general, organic, and biological chemistry, second edition

In this study strong HCl acid was titrated with a strong base of NaOH. Increasing pH values were observed during such titration. Depending on the existence of indicator in the solution, the equivalence point was determined when the color of the solution had turned into pink. After finding the equivalence point, images were taken after every addition of base to the acid solution. These images were evaluated using red, green and blue values of the pixels, through an image processing program. After analyzing the image results, it was found that the percentage of red values had increased with the increasing pH value. As a result, the image processing techniques can be used as an alternative approach to find pH values of titrated solutions.

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Investigation on Phytochemicals and Nutritional Values of Three Passion Fruit Species Planted in Lam Dong Plateau

Hoang,

2024

NRFHH

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This study comprehensively evaluated and compared the nutrient contents, total phenolic content, total flavonoid content, antioxidant activity, and anti-nutritional factors of three passion fruit species, namely purple passion fruit (Passiflora edulis f. edulis), yellow passion fruit (Passiflora edulis var. flavicarpa), and sweet granadilla fruit (Passiflora ligularis). The passion fruit samples were collected from various gardens throughout the Lam Dong plateau - Vietnam. The analyses were performed as per standard test methods. Passiflora edulis f. edulis had high contents of carbohydrates, fat, vitamin K1, potassium, phosphorus, and iodine whereas Passiflora edulis var. flavicarpa was rich in carbohydrates and vitamins group B including B3, B6, and B9. Passiflora ligularis, on the contrary, primarily provided essential nutrients of protein, vitamins A, and C, and minerals including sodium, potassium, calcium, magnesium, and iron. All three studied passion fruit species generally possessed moderate values of phenolics, flavonoids, and antioxidants; the same pattern was also observed with antinutrients as all three studied passion fruit species were found to contain low concentrations of phytate, tannin, and oxalate. These findings scientifically contribute to the food database system and can be exploited for diet planning.

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Review of general, organic, and biological chemistry, second edition

Cited by 3 publications

References 2 publications

Plastic-sleeve test method to measure autogenous and drying shrinkage in paste, mortar, and concrete: Test Results

Plastic-sleeve test method to measure autogenous and drying shrinkage in paste, mortar, and concrete: Test Results

Evaluation of pH Value by Using Image Processing

Investigation on Phytochemicals and Nutritional Values of Three Passion Fruit Species Planted in Lam Dong Plateau

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