Banca de DEFESA: LUIS EDUARDO GUIEU GALVAO TELLES RIBEIRO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LUIS EDUARDO GUIEU GALVAO TELLES RIBEIRO
DATE: 30/11/2022
TIME: 08:30
LOCAL: Plataforma digital GoogleMeet: https://meet.google.com/zig-oubc-ibv
TITLE:

YELLOW MOMBIN (Spondias mombin L) SYMBIOTIC FUNCTIONAL BEVERAGES: DEVELOPMENT, STABILITY DURING STORAGE AND SENSORY ASPECTS

KEY WORDS:

Lactiplantibacillus plantarum; Fructooligosaccharides; Fermentation; Fruit and Vegetable Beverage; Spondias mombin L.

PAGES: 75
BIG AREA: Ciências da Saúde
AREA: Nutrição
SUMMARY:

The search for plant-based probiotic products aiming to replace dairies have been growing in recent years, especially due to the increasing number of lactose intolerant individuals and population’s concern about well-being and quality of life. In this context, the present project aimed to elaborate and evaluate fermented and
unfermented symbiotic yellow mombin (Spondias mombin L.) beverages added with fructooligosaccharides (FOS) and Lactiplantibacillus plantarum NRRL B-4496 for probiotic, physicochemical and bioactive stability during 28 days of refrigerated storage at 4 °C. Six formulations were prepared for analysis: standard mombin juice (PAD), prebiotic juice (PREB), unfermented symbiotic juice (SIM), fermented symbiotic juice (SIMF), unfermented symbiotic juice with pH adjusted to 4.5 (SIMA) and fermented symbiotic juice with pH adjusted to 4.5 (SIMFA). Samples stored at 4 °C were analyzed for viable cell counts, pH, titratable acidity, total soluble solids (TTS), total phenolic compounds (TPC) and antioxidant activity by DPPH scavenging activity on storage days 0, 7, 14, 21 and 28. Results showed viable counts of 9.0 (1.0) log UFC/mL and 9.0 (2.3) log UFC/mL with 21 days of storage for SIMF and SIMA, respectively. In addition, SIMFA showed a value of 8.2 (0.1) log UFC/mL by the end of the 28 days period. All formulations showed a slight decrease in pH values by 28 days in relation to the star of the storage, reaching 2,2 to 2,5 for the unadjusted formulations and 4,3 to 4,8 for the adjusted ones. Titratable acidity and TSS parameters showed minor alterations during storage. TPC showed variations in all formulations, staying between 234 and 431 mg GAE/L. Moreover, antioxidant activity was kept stable in PREB, SIMF, SIMA and SIMFA, presenting a slight growth in SIM and significant decrease in PAD. Evaluation of overall acceptance and purchase intent for PREB, SIMF and SIMA was conducted with 91 untrained panelists. Both PREB and SIMF received high acceptability indexes of 78,14 and 75,46%, respectively, and panelists considered the excess of acidity and lack of sweet taste as the most important characteristics for improvement. Through observation of the obtained results, it is possible to consider yellow mombin juice fortified with FOS as a viable matrix for the inoculation L. plantarum, keeping stable counts for symbiotic formulations and reaching good acceptance.

COMMITTEE MEMBERS:
Externa à Instituição - FLÁVIA CAROLINA ALONSO BURITI - UEPB
Presidente - 3652554 - FRANCISCO CANINDE DE SOUSA JUNIOR
Interna - 1610982 - PRISCILLA MOURA ROLIM