Ash content in fruit samples of the <i>Actinidia kolomikta</i> genetic collection

Abstract

Among the representatives of the Actinidia Lindl. genus, Actinidia kolomikta (Siebold et Zucc.) Planch. is valued as the most winter-hardy variety with high taste and dietary properties. The Federal Horticultural Research Centre for Breeding, Agrotechnology and Nursery has a live collection of Actinidia, which includes more than a hundred cultivated forms and varieties. In this study, ash content in Actinidia kolomikta fruits of 10 varieties and collection samples was studied by energy-dispersive X-ray spectroscopy using an analytical scanning electron microscope JEOL JSM6090 LA. A decreasing series was established for the accumulation of ash elements in the fruits of the studied samples: Ca&gt; K&gt; P&gt; Mg&gt; Mo&gt; S&gt; Se&gt; Zn&gt; Fe&gt; Co&gt; Si&gt; Na. In terms of accumulation of useful macro- and micronutrients, the most valuable varieties were identified. The total accumulation of macronutrients in the fruit ash ranged from 28.6 to 45.3 wt%. This indicator was the highest in the fruits of Dolgovechnaya, Uslada and Vinogradnaya (42.068–45.638 wt%). The fruits of the Uslada variety were distinguished by a high content of phosphorus (5.89), silicon (0.504), sulfur (1.34) and potassium (23.596 wt%). In terms of micronutrient accumulation, the Pamyati Kolbasinoj variety (4.904 wt%) showed the highest levels of molybdenum (3.804) and selenium (0.801 wt%). Iron accumulated more readily in the fruits of the Uslada variety (0.161), cobalt — in Nadezhda (0.157), zinc — in Vinogradnaya (0.247) and Chempion (0.195). A statistically significant positive correlation (r &gt; 0.7) was revealed in the accumulation of the following pairs of ash elements: sodium — sulfur (r = 0.70), phosphorus — potassium (r = 0.75), silicon — iron (r = 0.76), as well as molybdenum with phosphorus (r = 0.84), sulfur (r = 0.83) and potassium (r = 0.71). A statistically significant negative correlation was observed only for the accumulation of phosphorus and calcium (r = -0.71). According to the results, the fruits of the Actinidia kolomikta varieties under study can be an additional or alternative source of dietary minerals in functional food products.

The Global Metabolome Profiles of Four Varieties of Lonicera caerulea, Established via Tandem Mass Spectrometry

“…L. caerulea berries are characterized by a high content of dry matter (up to 19%) and sugars (up to 12.5%, represented by sucrose, glucose, and fructose, the content of the latter being higher than 55%). The combined action of ascorbic acid (up to 150 mg/100 g) and P-active substances (total up to 2500 mg/100 g) have a positive effect on the human body [6]. The beneficial effect of L. caerulea berries on reducing the negative effects of ultraviolet radiation and diabetes mellitus, as well as neurodegenerative diseases and atherosclerosis, has been reported [7,8].…”

Comparative Analysis Revealed Intrageneric and Intraspecific Genomic Variation in Chloroplast Genomes of Actinidia spp. (Actinidiaceae, Viridiplantae)

“…The genus Actinidia Lindl., together with the genera Saurauia and Clematoclethra, belongs to the family Actinidiaceae [1,2] and includes more than 60 species [3]. More than ten species of the genus Actinidia bear edible fruits with a pleasant taste and high nutritional value; they possess a unique set of biologically active substances and contain a significant amount of ascorbic acid, though they have a low acidity level in terms of acid-sugar balance [4]. The most common and well-known species throughout the world is Actinidia chinensis var.…”