Custard Apple Value Addition: Processing, Products, and Agribusiness Opportunities

Research published by the Central Food Technological Research Institute Mysore and National Horticulture Board documents that custard apple pulp is one of the most versatile raw materials for food processing among Indian tropical fruits, with its intensely sweet flavour profile, creamy texture, and distinctive aroma making it highly suitable for incorporation into ice cream, shrikhand, flavoured milk, ready-to-drink beverages, frozen desserts, and bakery products. CFTRI processing trials confirm that properly extracted and frozen custard apple pulp at minus 18 degrees Celsius retains 85 to 90 percent of its original flavour compounds and nutritional profile for up to 12 months, transforming a highly perishable fresh fruit with a 5 day ambient shelf life into a year-round ingredient commanding ₹80 to ₹150 per kg from food manufacturers. NHB agribusiness development reports identify custard apple processing as one of the highest-potential value addition opportunities for farmer producer organisations in Maharashtra and Andhra Pradesh given the significant price premium available over fresh fruit farm gate realisations.

Frozen Custard Apple Pulp: The Most Viable Processing Option

CFTRI Mysore research on custard apple pulp preservation identifies frozen pulp production as the most technically straightforward and commercially viable processing option for farmer groups and small agro-processors. The process involves manual or mechanical depulping of ripe custard apple to separate pulp from seeds and skin, pasteurisation of extracted pulp at 85 degrees Celsius for 15 seconds to inactivate spoilage microorganisms, filling into food-grade high-density polyethylene pouches of 500 gram or 1 kg capacity, blast freezing at minus 35 degrees Celsius to achieve rapid temperature reduction that preserves texture and flavour, and storage at minus 18 degrees Celsius. CFTRI trials document that frozen custard apple pulp produced by this method meets FSSAI food safety standards and has a commercial shelf life of 12 months. Ice cream manufacturers in Pune, Mumbai, and Hyderabad pay ₹90 to ₹140 per kg for quality frozen custard apple pulp compared to ₹25 to ₹45 per kg farm gate price for fresh fruit during peak harvest season, representing a value multiplication of 3 to 4 times for the same raw material.

Custard Apple Ice Cream: India's Most Popular Processed Product

Custard apple ice cream, known as sitaphal ice cream in Maharashtra and widely sold across Mumbai, Pune, and Nashik, is documented by FSSAI and CFTRI as the single largest volume application of processed custard apple in India. Market research compiled by NHB estimates the sitaphal ice cream market in Maharashtra alone at approximately ₹180 to ₹220 crore annually during the September to February custard apple season. Small-scale ice cream production using custard apple pulp is technically accessible to farmer entrepreneurs with an investment of ₹8 to ₹15 lakh for a 100 litre per day capacity ice cream plant including pulping equipment, pasteuriser, freezer, and packaging machinery. CFTRI has published a validated recipe and production protocol for custard apple ice cream with 8 percent fat, 36 percent total solids, and 25 to 30 percent custard apple pulp incorporation that produces a commercially acceptable product with 6 month shelf life at minus 18 degrees Celsius, available through CFTRI's technology transfer program at nominal licensing cost.

Ready-to-Drink Custard Apple Beverages

Research from the Defence Food Research Laboratory Mysore and CFTRI documents the formulation and processing parameters for custard apple ready-to-drink beverages including nectar, squash, and flavoured milk. Custard apple nectar with minimum 20 percent fruit pulp content, 15 degrees Brix sugar level, and 0.3 percent citric acid for pH adjustment to below 4.0 was shown in CFTRI shelf life studies to achieve 6 months ambient storage stability in aseptic tetra pack packaging and 12 months in retort pouches. The Indian packaged beverage market valued at USD 18 billion in 2023 by FICCI research has very limited custard apple flavour presence compared to mango, guava, and litchi, representing a significant market gap. Custard apple flavoured milk combining 15 percent custard apple pulp with toned milk, sugar, and stabilisers processed at UHT temperatures achieved 60 day refrigerated shelf life in DFRL trials and received high consumer acceptance scores in taste panels conducted in Pune and Bangalore, suggesting strong commercial potential for dairy companies and farmer-owned milk processing cooperatives.

Custard Apple Shrikhand and Traditional Dairy Products

Shrikhand, the traditional Maharashtra and Gujarat strained yoghurt dessert, is one of the most natural applications for custard apple flavour given the complementary creamy texture profiles of both ingredients. Research from the Dairy Technology Department of Anand Agricultural University documents that incorporation of 20 to 25 percent custard apple pulp into chakka, the strained curd base for shrikhand, produces a product with superior sensory scores over plain shrikhand in consumer taste panels across Gujarat and Maharashtra. FSSAI product standards classify custard apple shrikhand under the broader shrikhand category with minimum 9 percent milk fat, minimum 41 percent total solids, and maximum permissible fruit pulp content of 50 percent by weight. Production of custard apple shrikhand requires only standard dairy processing equipment already present in most cooperative dairy plants, making it an immediately viable product extension for dairy cooperatives in custard apple growing districts of Nashik, Aurangabad, and Solapur without any additional capital investment beyond pulp procurement.

Setting Up a Custard Apple Processing Unit: Investment and Returns

NHB agro-processing project reports provide detailed investment and return estimates for small-scale custard apple processing units suitable for farmer producer organisations. A basic frozen pulp processing unit with capacity of 500 kg of fresh fruit processing per day requires capital investment of ₹12 to ₹18 lakh covering a mechanical pulper at ₹1.5 to ₹2.5 lakh, pasteuriser at ₹2 to ₹3 lakh, blast freezer at ₹4 to ₹6 lakh, cold storage of 5 tonne capacity at ₹3 to ₹4 lakh, and packaging and auxiliary equipment at ₹1.5 to ₹2.5 lakh. Operating at 70 percent capacity utilisation over a 60 day processing season processing 21,000 kg of fresh fruit into approximately 12,000 kg of frozen pulp, gross revenue at ₹100 per kg frozen pulp equals ₹12 lakh. After raw material cost of ₹5.25 lakh at ₹25 per kg fresh fruit, processing and packaging cost of ₹1.8 lakh, and other overheads of ₹0.9 lakh, net profit of approximately ₹4 lakh per season is achievable in the first year of operation according to NHB project viability analysis.