“第三代水果”都出来了，有何“过果之处”？

Core Viewpoint - Blackberry, often referred to as the "black diamond" of fruits, is gaining popularity in China due to its rich nutritional profile and health benefits, despite its high price and limited availability in certain regions [3][9]. Group 1: Nutritional Benefits - Blackberries contain a high water content of nearly 90%, making them refreshing and hydrating [3]. - They are rich in anthocyanins, with a concentration of 114.4 to 241.5 mg per 100 grams, which is significantly higher than strawberries (7-18 mg/100g) and grapes (20.6 mg/100g) [6][8]. - Regular consumption of blackberries can help maintain youthfulness and prevent chronic diseases, with studies indicating that increasing anthocyanin intake can reduce the risk of coronary heart disease by 12%-32% [6][8]. Group 2: Comparison with Other Berries - While blackberries have lower anthocyanin content compared to blueberries (387-487 mg/100g), they still outperform strawberries and grapes by 5 to 35 times [6]. - Blackberries also provide higher levels of vitamin C (21 mg/100g), dietary fiber (5.3 g/100g), and potassium (162 mg/100g) compared to blueberries [8]. Group 3: Market and Pricing - Fresh blackberries are relatively expensive in northern China, costing around 70-80 yuan for half a kilogram, making them a luxury item for many consumers [9]. - Frozen blackberries are a more affordable alternative, maintaining most of their nutritional value and flavor even after freezing [9][12]. Group 4: Storage and Preparation - Blackberries are sensitive to storage and transport, with a short shelf life at room temperature, typically lasting only two days [9]. - Freezing blackberries can preserve their nutrients, with studies showing that most compounds remain stable or even increase during freezing [12].