Passion Fruit in Fruit Preparations for Yogurt: What R&D Teams Specify

R&D teams specifying passion fruit for a yogurt fruit preparation fix six things before the first trial: format, seed level, soluble solids, acidity, microbiological limits and the fruit share needed for the label. Dosage links them. At 15% preparation with 40% fruit, the finished yogurt carries 6 g of fruit per 100 g.

This guide is for fruit preparation makers and dairy plants in Poland, Czechia, Slovakia, Romania, Hungary and Bulgaria. It covers what to write into the raw material specification and how to check the first lot.

What does passion fruit bring to a yogurt preparation?

Mainly acidity and aroma, in a small dose. A study of purple passion fruit grown for industry in Brazil reported 13.9 °Bx and 4.63% titratable acidity as citric acid, with a pH near 2.7 (Silva et al., Embrapa). That puts the Brix-to-acid ratio close to 3, which is sharp for a fruit going into a dairy product.

Conventional yogurt finishes at about pH 4.2 (Frontiers in Food Science and Technology, 2025). A preparation therefore has to be balanced against the finished yogurt, and the raw material specification should give R&D the numbers to do that for each lot.

Trial work gives a sense of scale. The same 2025 review cites yogurts made with 15% v/v banana, papaya or watermelon pulp, 10% papaya pulp, and 13% w/w passion fruit pulp. Your own dosage will depend on the preparation and the product brief.

Which passion fruit format suits a yogurt preparation?

• IQF passion fruit with seeds. For stirred yogurt, fruit-on-the-bottom and toppings where black seeds are part of the look. Check seed passage through pumps and nozzles.
• Seedless pulp or purée. For smooth preparations, ripples and drinking yogurt.
• Concentrate. Saves frozen storage and freight, and needs a reconstitution calculation and an aroma check at trial stage.

TbesAgri supplies IQF passion fruit as standard and confirms other formats per project. The juice and dessert specification guide covers the fruit itself in more detail.

What should the raw material specification state?

• Species and origin. Purple passion fruit, Passiflora edulis, with country of origin.
• Format and seed level. Seeds per 100 g for seeded product, or the sieve size in mm for seedless product.
• Soluble solids. °Bx at 20 °C on thawed fruit, with a stated tolerance. The EU minimum for reconstituted passion fruit juice and purée is 12.0 °Bx (Directive 2001/112/EC, Annex V). CBI reports the AIJN reference at 12.4 °Bx (CBI, 2026).
• Acidity. Grams of citric acid per 100 g, with a tolerance and the method named.
• pH. Target and range at 20 °C.
• Colour and aroma. Against a reference sample agreed before the first order.
• Microbiology. Limits for total plate count, yeast, mould, E. coli and Salmonella.
• Residues. A report against Regulation (EC) No 396/2005 from an ISO/IEC 17025 accredited laboratory.
• Pack and storage. Carton weight, liner, pallet pattern and storage at −18 °C.

How should QA read the certificate of analysis?

Ask for results per lot, with the method beside each value. Brix measured on thawed fruit and Brix measured on pressed juice can differ, so name the sample preparation in the specification. If seeds are sieved out before measurement, say so. For acidity, agree whether the result is expressed per 100 g of pulp or per 100 g of juice. Settling these definitions before the first order keeps the discussion on the fruit, and it makes lot-to-lot comparisons usable for R&D.

How does dosage decide the fruit on the label?

If passion fruit appears in the product name or is emphasised on the pack, its quantity has to be declared (Regulation (EU) No 1169/2011, Article 22). The percentage reflects the quantity at the time of use (Annex VIII). So the fruit share of the preparation feeds directly into the yogurt label.

A worked example per 100 g of yogurt, using the study acidity above. Replace the figures with your own lot data.

1. A dosage of 15% puts 15 g of preparation into the yogurt.
2. At 40% fruit in the preparation, that is 6 g of passion fruit.
3. At 4.63% acidity, the fruit adds 0.28 g of acid as citric.
4. A lot with 10% lower acidity adds 0.25 g, and the recipe may need a small correction to taste the same.

Acidity tolerance deserves as much attention as Brix in a yogurt specification, because acidity moves the flavour the consumer tastes. Sugar can be corrected at the kettle.

Do EU jam rules apply to yogurt fruit preparations?

The minimum fruit contents in the jam directive cover products sold under its reserved names, such as jam and extra jam. A preparation sold under another name follows the recipe agreed with your customer. The guide for jam and purée makers sets out those limits.

Additives are a separate question. Under Article 18 of Regulation (EC) No 1333/2008, an additive permitted in an ingredient may be present in the compound food through carry-over, within the conditions the article sets. Frozen passion fruit is a single-ingredient raw material, so the additive decision sits in your preparation recipe. If your system is older, note that calcium sorbate (E 203) left the EU list in 2018 (Regulation (EU) 2018/98).

Does origin change the recipe?

It can. CBI notes that Vietnamese passion fruit juice is less acidic and can be blended with South American juice (CBI, 2026). For a yogurt preparation, that can mean less sugar to balance the acid. Compare lots side by side at your target dose before you change a recipe. For sourcing notes, see the guide for Poland and Eastern Europe.

What belongs in a first trial?

• Thaw under your standard procedure and measure °Bx at 20 °C and pH in triplicate.
• Titrate acidity and compare it with the certificate of analysis.
• Count seeds per 100 g if your product shows them.
• Run the preparation through your pump and depositor at line speed.
• Dose at the target rate and record yogurt pH on day 1 and at end of shelf life.
• Score colour and aroma at the same two points, against the reference sample.
• Record whey separation, since fruit additions can move it in either direction.
• Recalculate the fruit percentage for the label.

Ready to test it on your line? Request the specification or a sample with your format and target °Bx, and our export team will reply with the document for your R&D file.

FAQ

How much passion fruit goes into a yogurt preparation?

It depends on the recipe and the flavour target. Published yogurt trials have used 13% w/w passion fruit pulp. Passion fruit is acidic, so test dosage against pH and sensory results.

Should the seeds stay in?

Keep them where they add to the look of the product and your line can handle them. Use seedless material for smooth preparations and for equipment with narrow nozzles.

Can frozen passion fruit be used for EU fruit preparations?

Yes. Frozen fruit is a standard raw material for this use. Agree the thawing procedure, the specification limits and the documents with your supplier before the first lot.

How do I request a specification or a sample?

Send the format, seed preference, target °Bx, quantity and destination to export@tbesfood.com or WhatsApp +84 932 072 978. We reply with the specification and sample options.

Sources

• CBI: Entering the European market for passion fruit juice
• Incorporation of fruits or fruit pulp into yoghurts, Frontiers in Food Science and Technology, 2025
• Silva et al., Quality of purple passion fruit for industry usage, Embrapa
• Directive 2001/112/EC, Annex V
• Regulation (EU) No 1169/2011, Article 22 and Annex VIII
• Regulation (EC) No 1333/2008 and Regulation (EU) 2018/98