Smarter Shelf-Life Management in Tomatoes – Albina and the Power of LoCal Calcium vs Refrigeration

Tomato growers, exporters, and supply chains have long relied on refrigeration and controlled atmosphere (CA) storage to preserve fruit quality postharvest. But what if the shelf-life battle could be won before harvest even finishes? New research shows that using smarter calcium nutrition with LoCal technology, featured in Albina from Levity Crop Science, can offer similar or superior shelf-life benefits—without the cost, complexity, or infrastructure of cold storage.

What is LoCal and How Does it Work?

LoCal is Levity Crop Science’s proprietary MCAS (Membrane Calcium Absorption Stimulant) technology. It addresses a fundamental challenge in plant nutrition: calcium is essential for strong, healthy fruit but is poorly mobile inside the plant. Fruit tissues—especially in crops like tomatoes—receive little calcium through traditional means due to their low transpiration rates.

LoCal works by mimicking the natural auxin signals that stimulate calcium uptake into low-transpiration tissues like fruit, without triggering unwanted vegetative growth. This enables calcium to reach the fruit interior where it strengthens cell walls, enhances firmness, and improves shelf-life. LoCal doesn’t simply supply calcium—it ensures the plant puts it where it’s needed most.

How It Works: Physiology vs Environment

Albina (Ca + LoCal)

• Enhances calcium absorption in fruit (a poor absorber of Ca).
• Boosts cell wall integrity, reduces softening, and improves handling resilience
• Works within the fruit, creating stronger, firmer tomatoes

Refrigerated / Controlled Atmosphere Storage

• Slows ripening and decay by lowering temperature and oxygen, increasing CO₂
• Requires energy-intensive cold rooms, sealed units, and stable electricity
• Delays degradation, but doesn’t improve intrinsic fruit strength

Cost & Scalability

Efficiacy: Shelf-Life, Firmness & Fruit Quality

Evidence from Levity’s Research According to Levity Crop Science’s controlled research trial on tomatoes (Levity, 2023), Albina-treated fruit showed dramatic improvements in postharvest quality:

• Fruit treated with Albina remained firmer for over 10 weeks at ambient conditions, compared to untreated fruit which lost firmness and collapsed by week 3.
• The amount of calcium applied was just 0.91 kg/ha, significantly less than standard calcium protocols (often >10 kg/ha).
• Albina-treated tomatoes had higher °Brix and improved resistance to drop damage, making them ideal for fresh market and long-distance export.

This study highlights the physiological impact of LoCal calcium uptake inside the fruit, helping tomatoes retain structure and resist postharvest degradation without external cooling.

Example: Low-Infrastructure Regions

In many parts of Sub-Saharan Africa, South and Southeast Asia, and Latin America, growers have limited or no access to refrigerated storage or temperature-controlled logistics. Fruit losses in these areas often exceed 30% due to poor shelf-life and softening.

Albina offers a solution that doesn’t require electricity, cold rooms, or sealed transport. By strengthening the fruit internally before harvest, farmers can sell higher-quality produce even without postharvest facilities. This enables:

• Higher returns for smallholder farmers
• Access to more distant markets
• Reduced food waste in regions where every kilogram counts

Example: Reducing Carbon by Cutting Refrigeration

Refrigerated storage and CA units typically consume around 0.5–1.5 kWh/m² per day depending on conditions. For a medium-sized facility storing 10,000 kg of tomatoes over 6 weeks, this equates to:

• ~1,000 kWh total (assuming 1 kWh/day/m²)
• ~400 kg CO₂ equivalent (based on average grid emissions of 0.4 kg CO₂/kWh)

By using Albina, tomatoes retain firmness for >2 weeks without cooling, offering a major energy and emissions saving. Even partial substitution of refrigeration with Albina-assisted shelf-life could reduce CO₂ emissions by hundreds of kg per farm, per season.

For environmentally conscious retailers, exporters, and processors, this presents a scalable strategy to meet sustainability targets without compromising product quality.

Sustainability and Accessibility

Albina with LoCal:

• Low input requirement: only ~0.91 kg/ha of Ca
• Low energy, no refrigeration dependency
• Reduces food waste in field-to-market chain
• Suitable for off-grid or developing regions

Refrigerated Storage:

• High energy footprint, GHG emissions
• Requires reliable power and infrastructure
• May still waste energy on fruit with poor firmness

Integration: Better Together Albina and refrigeration aren’t competitors—they can be complementary tools:

• Preharvest Albina strengthens fruit before storage
• Cold chain can preserve that strength for longer
• Combined systems are ideal for export, long-distance markets, and premium retail

How to Apply Albina for enhanced shelf life

• Pre-harvest: 1L/Ha foliar spray should be applied 1–2 weeks ahead of harvest.
• Post-harvest: A 1% solution dip may also be used after harvest for immediate firmness enhancement.

Conclusion Albina offers a field-based, cost-effective strategy to improve tomato shelf-life and fruit resilience. For regions without reliable cold chains, it’s a game changer. And even where refrigeration is used, Albina-treated fruit enter storage with better quality—giving growers and exporters a competitive edge.

Levity’s smarter calcium solutions mean you don’t have to cool your way to quality—you can grow it.

Reference Dodgson, J.; Weston, A.K.; Marks, D.J. (2023). Tomato Firmness and Shelf-Life Increased by Application of Stimulated Calcium. Crops, 3(4), 251–265. https://doi.org/10.3390/crops3040023