Core Insights - Fresh sweet corn has gained popularity as a staple food due to its sweet and tender taste, with a variety of products available in supermarkets, including vacuum-packed and frozen corn [1] Group 1: Consumer Preferences - Fresh sweet corn is widely favored by consumers as a healthy and low-calorie food option, often incorporated into meals, especially for families with children [2][4] - Sales of pre-packaged fresh corn have seen significant growth, with a reported increase of over 30% in sales volume since October [4] Group 2: Nutritional Benefits - Fresh sweet corn contains lower calories compared to refined grains, with approximately 90 to 110 calories per 100 grams, and is high in dietary fiber, making it a suitable option for weight loss diets [7] - New varieties of sweet corn are being developed to meet consumer demands, with some having higher soluble sugar or protein content, and others enriched with folic acid and anthocyanins [7] Group 3: Preservation Techniques - The preservation of fresh sweet corn is crucial for year-round supply, utilizing rapid low-temperature treatment and other methods to maintain freshness and nutritional value [5][7] - Frozen storage effectively inhibits the metabolism and respiration of sweet corn, preserving sugar and starch content, with minimal nutrient loss observed even after two months of freezing [8][10] - Advanced processing techniques, such as vacuum packaging and high-temperature sterilization, extend the shelf life of processed corn to 8 months to a year without the use of preservatives [10]