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Research

Evaluation of Palm Side Stream Polyphenols for Bread Preservation

Key result

RC001 samples showed lower visible mold incidence

Mold on Days 7 and 14: RC001 1/6, control 6/6.

16% softer texture on Day 7 with RC001, and better mass retention
Wrapped bread samples on a tray on Day 0, with no visible mold
Day 0Mold: 0/6 in both groups
Bread samples on Day 7, with visible mold on the control samples
Day 7Mold: RC001 1/6, control 6/6
Bread samples on Day 14, with heavy visible mold on the control samples
Day 14Mold: RC001 1/6, control 6/6

Introduction

Bread shelf life extension requires moisture and texture retention, and mold control.

We tested RC001, an aqueous polyphenol extracted from palm press fiber, in a bread model over 14 days.

Objective: assess visible mold, freshness scores and mass retention in RC001 and control bread samples.

Methods

  1. Experimental design

    Six samples per group. RC001 dose = 2% of flour mass (40 mg GAE/kg).

  2. Storage and measurement

    Room temperature storage and visual freshness on Days 0, 7 and 14.

  3. Mass and texture

    Mass and manual force measurements on Days 2, 7 and 14.

  4. Limitations

    No commercial comparator arm in this proof-of-concept study.

Average manual deformation force (g)

RC001 versus control on Days 2, 7 and 14

  • Day 2 · RC0010.29
  • Day 2 · Control0.28
  • Day 7 · RC00122.85
  • Day 7 · Control27.32
  • Day 14 · RC00128.92
  • Day 14 · Control31.19

RC001 Control

Conclusions

  1. Bread preservation

    RC001 is a potential mold control ingredient for bread and baked goods.

  2. Freshness preservation

    Based on this early positive signal, RC001 has potential in shelf-life improvement.

  3. Moisture retention

    Based on this early positive signal, RC001 has potential in maintaining freshness.

Why this matters

This limited proof-of-concept trial demonstrates the commercial bakery potential of RC001.

A larger trial using commercial comparators and calcium propionate is underway.

Interested in RC001 for your bakery products?

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