Research Keyword: Food preservation

Mechanism Analysis of Amphotericin B Controlling Postharvest Gray Mold in Table Grapes

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Researchers discovered that amphotericin B, a natural compound produced by soil bacteria, effectively prevents gray mold disease on table grapes. The compound works by directly damaging the fungus’s cell membranes and also boosts the grape’s own defense mechanisms. This natural solution could replace harmful synthetic fungicides while extending the shelf life of grapes during storage and transport.

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Antimicrobial and Antifungal Activities of Proline-Based 2,5-Diketopiperazines Occurring in Food and Beverages and Their Synergism with Lactic Acid

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Researchers synthesized special cyclic peptides called 2,5-diketopiperazines (found naturally in fermented foods like bread and cheese) and tested their ability to kill harmful molds and bacteria. When combined with lactic acid (a natural preservative), these compounds worked extremely well together, achieving nearly complete mold inhibition. This research suggests that using special starter cultures that naturally produce these compounds could help keep food fresh longer without artificial preservatives.

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Effect of Flammulina velutipes polysaccharides on the physicochemical properties of catfish surimi and myofibrillar protein oxidation during frozen storage

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Researchers discovered that mushroom polysaccharides extracted from Flammulina velutipes roots can protect fish surimi (a protein product used in food manufacturing) during frozen storage. When added to surimi at 2% concentration, these natural mushroom extracts prevented protein damage and maintained product quality just as well as traditional chemical preservatives, but without the added sweetness or calories. This finding suggests that mushroom-based compounds could offer a healthier alternative for preserving frozen food products.

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Alternative of Phosphate by Freeze- or Oven-Dried Winter Mushroom Powder in Beef Patty

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This study tested whether mushroom powder could replace chemical additives in beef patties. Researchers compared freeze-dried and oven-dried winter mushroom powder against sodium pyrophosphate, a common meat additive. Oven-dried mushroom powder was better at preventing spoilage through oxidation, while freeze-dried powder helped retain moisture. While mushroom powder showed promise, it could only partially replace phosphate and would work best combined with other natural ingredients.

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Application and Mechanism of Action of Carvacrol Against Aspergillus niger Causing Postharvest Rot of Garlic Scapes (Allium sativum L.)

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Garlic scapes, the tender flower stalks of garlic plants, often rot during storage due to fungal infections. Researchers discovered that carvacrol, a natural compound found in herbs like thyme and oregano, effectively kills the fungi responsible for this spoilage. By damaging the fungal cell walls, carvacrol can help preserve fresh garlic scapes longer without synthetic chemicals, making it a promising natural food preservative for grocery stores and consumers.

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Packaging of Fresh Sliced Mushrooms with Essential Oils Vapours: A New Technology for Maintaining Quality and Extending Shelf Life

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Researchers developed a new packaging method for sliced mushrooms that uses essential oil vapors combined with modified atmosphere packaging to keep them fresh longer. The treatment with essential oils from eugenol, bergamot, and grapefruit prevented browning and slowed bacterial growth, allowing packaged mushrooms to stay fresh and appealing for about 12 days at refrigeration temperature. This is significantly longer than untreated mushrooms which became unacceptable after just 5 days. The method works naturally without synthetic chemicals and could help reduce food waste from mushroom spoilage.

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