Agricultural waste of Eriobotrya japonica L. (Loquat) seeds and flora leaves as source of natural dye and bio-mordant for coloration and bio-functional finishing of wool textile

Tropical fruits are defined as fruits that are grown in hot and humid regions within the Tropic of Cancer and Tropic of Capricorn, covering most of the tropical and subtropical areas of Asia, Africa, Central America, South America, the Caribbean and Oceania. Depending on the cultivation area covered, economic value and popularity these tropical fruits are divided into major and minor tropical fruits. There is an annual increment of 3.8% in terms of commercialization of the tropical fruits. In total 26 minor tropical fruits (Kiwifruit, Lutqua, Carambola, Tree Tomato, Elephant apple, Rambutan, Bay berry, Mangosteen, Bhawa, Loquat, Silver berry, Durian, Persimon, Longan, Passion fruit, Water apple, Pulasan, Indian gooseberry, Guava, Lychee, Annona, Pitaya, Sapodilla, Pepino, Jaboticaba, Jackfruit) have been covered in this work. The nutritional composition, phytochemical composition, health benefits, traditional use of these minor tropical fruits and their role in food fortification have been portrayed.

Minor tropical fruits as a potential source of bioactive and functional foods.

Eco-friendly simultaneous extraction of pectins and phenolics from passion fruit (Passiflora edulis Sims) peel: Process optimization, physicochemical properties, and antioxidant activity.

Phytochemistry, nutritional composition, health benefits and future prospects of Passiflora: A review.

Passion fruit is a tropical liana of the Passiflora family that is commonly planted throughout the world due to its abundance of nutrients and industrial value. Researchers are committed to exploring the relationship between phenotype and genotype to promote the improvement of passion fruit varieties. However, the traditional manual phenotyping methods have shortcomings in accuracy, objectivity, and measurement efficiency when obtaining large quantities of personal data on passion fruit, especially internal organization data. This study selected samples of passion fruit from three widely grown cultivars, which differed significantly in fruit shape, size, and other morphological traits. A Micro-CT system was developed to perform fully automated nondestructive imaging of the samples to obtain 3D models of passion fruit. A designed label generation method and segmentation method based on U-Net model were used to distinguish different tissues in the samples. Finally, fourteen traits, including fruit volume, surface area, length and width, sarcocarp volume, pericarp thickness, and traits of fruit type, were automatically calculated. The experimental results show that the segmentation accuracy of the deep learning model reaches more than 0.95. Compared with the manual measurements, the mean absolute percentage error of the fruit width and length measurements by the Micro-CT system was 1.94% and 2.89%, respectively, and the squares of the correlation coefficients were 0.96 and 0.93. It shows that the measurement accuracy of external traits of passion fruit is comparable to manual operations, and the measurement of internal traits is more reliable because of the nondestructive characteristics of our method. According to the statistical data of the whole samples, the Pearson analysis method was used, and the results indicated specific correlations among fourteen phenotypic traits of passion fruit. At the same time, the results of the principal component analysis illustrated that the comprehensive quality of passion fruit could be scored using this method, which will help to screen for high-quality passion fruit samples with large sizes and high sarcocarp content. The results of this study will firstly provide a nondestructive method for more accurate and efficient automatic acquisition of comprehensive phenotypic traits of passion fruit and have the potential to be extended to more fruit crops. The preliminary study of the correlation between the characteristics of passion fruit can also provide a particular reference value for molecular breeding and comprehensive quality evaluation.

/pdf/nondestructive-3d-phenotyping-method-of-passion-fruit-based-2imc63kb.pdf

Nondestructive 3D phenotyping method of passion fruit based on X-ray micro-computed tomography and deep learning

Individual evaluation of aging- and caloric restriction-related changes to distinct multimeric complexes of circulating adiponectin by immunoblotting

The pericarp of passion fruit is typically discarded before consumption. We aimed to demonstrate that pigments extracted from the pericarp could be used as natural colourants. We focused on the stability of the dyes in response to heat, light, and storage, which is the most pressing problem associated with natural colourants. The stability of the pigment in solutions was affected by certain factors. However, colour measurements confirmed that for test samples in powder form or those covered by a coloured commercial plastic bag or light shield, the pigments remain stable with no noticeable colour change. The pigment extracted from the pericarp included anthocyanins such as cyanidin-3-glucoside, peonidin-3-glucoside, callistephin, and cyanidin-3-rutinoside, which have 3-O-glycoside bonding of the C-ring. They were not found in the passion fruit pulp or seeds. The colour value of the pigment was lower than that of the same amount of red cabbage dye or purple sweet potato dye, which are typically used in food manufacturing. The pigment extracted from passion fruit pericarp was used to dye processed food such as jelly, which was coloured pink to red depending on the amount of pigment used. The passion fruit pericarp could be used as a low-cost natural red colourant.

Analysis of natural colourant extracted from the pericarp of passion fruit

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Individual evaluation of aging- and caloric restriction-related changes to distinct multimeric complexes of circulating adiponectin by immunoblotting

Analysis of natural colourant extracted from the pericarp of passion fruit