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. 2019 Mar 4;28(5):1337-1347.
doi: 10.1007/s10068-019-00584-x. eCollection 2019 Oct.

Evaluation of nutritional characteristics and bioactive compounds of soursop-yoghurt and soursop-frozen dessert

Affiliations

Evaluation of nutritional characteristics and bioactive compounds of soursop-yoghurt and soursop-frozen dessert

Lucila J Virgen-Ceceña et al. Food Sci Biotechnol. .

Abstract

The nutritional quality, sensory attributes, polyphenols and acetogenins content in yoghurt and frozen dessert formulated with soursop pulp were investigated. The addition of soursop pulp to yoghurt and frozen dessert improved the sensory attributes and the nutritional quality of soursop dairy products resulting in a composition of 0.92 and 2.17% of dietary fiber, 11.25 and 9.84 mg/100 g of vitamin C as well as 243.02 and 490.98 mg/100 g of total polyphenols, respectively. Acetogenins were extracted from both dairy products using maceration, sonication, microwave and Soxhlet. Sonication showed to be faster and safer than the other methods for acetogenins extraction. Higher annonacin (an acetogenin) content was found in yoghurt (38 ng/g) than in frozen dessert (15 ng/g). The quantification of bioactive compounds implied the nutraceutical properties to yoghurt and ice cream when they are added with soursop pulp. The results are useful for the consumers seeking healthier foods.

Keywords: Acetogenins; Annona muricata; Dairy foods; Nutritional quality; Polyphenols.

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Conflict of interest statement

Conflict of interestThe authors declare that they have no conflicts of interest.

Figures

Fig. 1
Fig. 1
Sensory evaluation of yoghurt (A) and frozen dessert (B) with added soursop pulp, and qualitative identification of acetogenins by thin layer chromatography (TLC) obtained from four different extraction methods from yoghurt (C) and frozen dessert (D) with added soursop. ST Annonacin standard, MA Maceration, SO sonication, MW Microwave, SX Soxhlet
Fig. 2
Fig. 2
Identification of annonacin by direct introduction of samples in direct analysis in real time mass spectrometry (DART-MS) (A standard), from yoghurt (B) and frozen dessert (C) with soursop pulp added
Fig. 3
Fig. 3
High pressure liquid chromatography (HPLC) identification of annonacin (A standard) from yoghurt (B) and frozen dessert (C) with soursop pulp added

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