Impact of aging on the phase behavior of cocoa butter and copra oil blends
Aging of cocoa butter (CB)/copra oil (CO) binary blends (noted CB/CO) is investigated through a multi-technique approach. Indeed, the phase behavior of non-aged and 30 days-aged cocoa butter/copra oil binary blends (CB/CO) at 4°C is studied, using a combination of Nuclear Magnetic Resonance (NMR), D...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Food Chemistry Advances |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772753X23002332 |
| _version_ | 1797382796401967104 |
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| author | Julie Bloquet-Maurras Ahmed Bentaleb Eric Laurichesse Mathilde Bayard Véronique Schmitt |
| author_facet | Julie Bloquet-Maurras Ahmed Bentaleb Eric Laurichesse Mathilde Bayard Véronique Schmitt |
| author_sort | Julie Bloquet-Maurras |
| collection | DOAJ |
| description | Aging of cocoa butter (CB)/copra oil (CO) binary blends (noted CB/CO) is investigated through a multi-technique approach. Indeed, the phase behavior of non-aged and 30 days-aged cocoa butter/copra oil binary blends (CB/CO) at 4°C is studied, using a combination of Nuclear Magnetic Resonance (NMR), Differential Scanning Calorimetry (DSC) and X-Ray Diffraction (XRD). During subsequent heating from 4°C to 40°C, solid fat content depression between 15°C and 20°C is shown with NMR, with the most pronounced occurring at two different compositions for the non-aged (60% CO addition in CB) and for the 30 days-aged mixtures (80% CO addition in CB). In agreement, DSC exposes melting enthalpy and melting temperature depression for the aged-blend 80/20 CB/CO. XRD highlights fat interactions at the nanoscopic scale and allows the precise attribution of polymorphic transitions perceived with DSC. The melt-mediated transformation of CB crystals from β'2-2L to β2-3L is shown in non-aged blends containing 0% to 10% of CO in CB, whereas it is shown to occur in blends containing 0% to 60% CO in CB for the 30 days aged-blends. As a result of this study, all the results obtained with the various methods are used to build the very first complete pseudo-phase diagram of 4°C-aged CB/CO blends, it highlights the shift of the eutectic points after 30 days of storage. We think that such a fundamental work can bring new understanding of a well-known issue as encountered in chocolate-based products storage. |
| first_indexed | 2024-03-08T21:11:41Z |
| format | Article |
| id | doaj.art-a8a5fd6510374447ad15c297a1293208 |
| institution | Directory Open Access Journal |
| issn | 2772-753X |
| language | English |
| last_indexed | 2024-03-08T21:11:41Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Food Chemistry Advances |
| spelling | doaj.art-a8a5fd6510374447ad15c297a12932082023-12-22T05:34:53ZengElsevierFood Chemistry Advances2772-753X2023-12-013100412Impact of aging on the phase behavior of cocoa butter and copra oil blendsJulie Bloquet-Maurras0Ahmed Bentaleb1Eric Laurichesse2Mathilde Bayard3Véronique Schmitt4Centre de Recherche Paul Pascal UMR 5031 Univ Bordeaux CNRS, 115 Avenue du Dr Albert Schweitzer, 33600 Pessac, France; Soredab, La Tremblaye, 78125 La Boissière-École, FranceCentre de Recherche Paul Pascal UMR 5031 Univ Bordeaux CNRS, 115 Avenue du Dr Albert Schweitzer, 33600 Pessac, FranceCentre de Recherche Paul Pascal UMR 5031 Univ Bordeaux CNRS, 115 Avenue du Dr Albert Schweitzer, 33600 Pessac, FranceSoredab, La Tremblaye, 78125 La Boissière-École, France; Corresponding author.Centre de Recherche Paul Pascal UMR 5031 Univ Bordeaux CNRS, 115 Avenue du Dr Albert Schweitzer, 33600 Pessac, FranceAging of cocoa butter (CB)/copra oil (CO) binary blends (noted CB/CO) is investigated through a multi-technique approach. Indeed, the phase behavior of non-aged and 30 days-aged cocoa butter/copra oil binary blends (CB/CO) at 4°C is studied, using a combination of Nuclear Magnetic Resonance (NMR), Differential Scanning Calorimetry (DSC) and X-Ray Diffraction (XRD). During subsequent heating from 4°C to 40°C, solid fat content depression between 15°C and 20°C is shown with NMR, with the most pronounced occurring at two different compositions for the non-aged (60% CO addition in CB) and for the 30 days-aged mixtures (80% CO addition in CB). In agreement, DSC exposes melting enthalpy and melting temperature depression for the aged-blend 80/20 CB/CO. XRD highlights fat interactions at the nanoscopic scale and allows the precise attribution of polymorphic transitions perceived with DSC. The melt-mediated transformation of CB crystals from β'2-2L to β2-3L is shown in non-aged blends containing 0% to 10% of CO in CB, whereas it is shown to occur in blends containing 0% to 60% CO in CB for the 30 days aged-blends. As a result of this study, all the results obtained with the various methods are used to build the very first complete pseudo-phase diagram of 4°C-aged CB/CO blends, it highlights the shift of the eutectic points after 30 days of storage. We think that such a fundamental work can bring new understanding of a well-known issue as encountered in chocolate-based products storage.http://www.sciencedirect.com/science/article/pii/S2772753X23002332Cocoa butterCopra oilCrystallizationPhase diagramEutecticAging |
| spellingShingle | Julie Bloquet-Maurras Ahmed Bentaleb Eric Laurichesse Mathilde Bayard Véronique Schmitt Impact of aging on the phase behavior of cocoa butter and copra oil blends Food Chemistry Advances Cocoa butter Copra oil Crystallization Phase diagram Eutectic Aging |
| title | Impact of aging on the phase behavior of cocoa butter and copra oil blends |
| title_full | Impact of aging on the phase behavior of cocoa butter and copra oil blends |
| title_fullStr | Impact of aging on the phase behavior of cocoa butter and copra oil blends |
| title_full_unstemmed | Impact of aging on the phase behavior of cocoa butter and copra oil blends |
| title_short | Impact of aging on the phase behavior of cocoa butter and copra oil blends |
| title_sort | impact of aging on the phase behavior of cocoa butter and copra oil blends |
| topic | Cocoa butter Copra oil Crystallization Phase diagram Eutectic Aging |
| url | http://www.sciencedirect.com/science/article/pii/S2772753X23002332 |
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