Investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurt

Abstract The processing methods, especially cooking, can cause quality losses, particularly in the nutritional value of the fresh product. This study investigated the effects of preprocessing methods on the nutritional properties of pumpkin and the physicochemical and sensory properties of pumpkin y...

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Main Authors: Hatice Sıçramaz, Ahmet Ayar
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:Food Science & Nutrition
Subjects:
Online Access:https://doi.org/10.1002/fsn3.3580
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author Hatice Sıçramaz
Ahmet Ayar
author_facet Hatice Sıçramaz
Ahmet Ayar
author_sort Hatice Sıçramaz
collection DOAJ
description Abstract The processing methods, especially cooking, can cause quality losses, particularly in the nutritional value of the fresh product. This study investigated the effects of preprocessing methods on the nutritional properties of pumpkin and the physicochemical and sensory properties of pumpkin yogurt. Two different pumpkin varieties (Cucurbita pepo and Cucurbita maxima) were subjected to three different preprocessing methods (freeze‐drying, boiling, and baking). Boiling significantly increased antioxidant activity (p ≤ .05), followed by baking. C. maxima had higher TDF and TPC than C. pepo, but in both pumpkin varieties, TDF did not change with heat treatment (boiling and baking), while TPC decreased. Mineral contents remained the same or decreased with heat treatment, except for Mn and Fe. In particular, the addition of C. maxima significantly affected the color parameters (L*, a*, b*) of yogurt and improved WHC (from 68.9% to 91.6%) and hardness (from 58.0 to 193.5 g; p ≤ .05). The sensory evaluation concluded that heat‐treated (boiled and baked) samples were preferred more than freeze‐dried raw ones. In conclusion, the results revealed that adding boiled and baked pumpkins, especially the preference for C. maxima instead of C. pepo, improved the quality parameters of yogurt.
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spelling doaj.art-cdbb5ed02fd84177ae7dff4803cf16932023-11-08T09:39:18ZengWileyFood Science & Nutrition2048-71772023-11-0111116878688710.1002/fsn3.3580Investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurtHatice Sıçramaz0Ahmet Ayar1Department of Food Engineering, Faculty of Engineering Sakarya University Sakarya TurkeyDepartment of Food Engineering, Faculty of Engineering Sakarya University Sakarya TurkeyAbstract The processing methods, especially cooking, can cause quality losses, particularly in the nutritional value of the fresh product. This study investigated the effects of preprocessing methods on the nutritional properties of pumpkin and the physicochemical and sensory properties of pumpkin yogurt. Two different pumpkin varieties (Cucurbita pepo and Cucurbita maxima) were subjected to three different preprocessing methods (freeze‐drying, boiling, and baking). Boiling significantly increased antioxidant activity (p ≤ .05), followed by baking. C. maxima had higher TDF and TPC than C. pepo, but in both pumpkin varieties, TDF did not change with heat treatment (boiling and baking), while TPC decreased. Mineral contents remained the same or decreased with heat treatment, except for Mn and Fe. In particular, the addition of C. maxima significantly affected the color parameters (L*, a*, b*) of yogurt and improved WHC (from 68.9% to 91.6%) and hardness (from 58.0 to 193.5 g; p ≤ .05). The sensory evaluation concluded that heat‐treated (boiled and baked) samples were preferred more than freeze‐dried raw ones. In conclusion, the results revealed that adding boiled and baked pumpkins, especially the preference for C. maxima instead of C. pepo, improved the quality parameters of yogurt.https://doi.org/10.1002/fsn3.3580Cucurbitanutritional propertiespreprocessingpumpkinyogurt
spellingShingle Hatice Sıçramaz
Ahmet Ayar
Investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurt
Food Science & Nutrition
Cucurbita
nutritional properties
preprocessing
pumpkin
yogurt
title Investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurt
title_full Investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurt
title_fullStr Investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurt
title_full_unstemmed Investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurt
title_short Investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurt
title_sort investigation of the effects of different processing methods on the selected nutritional properties of pumpkin and determining the appropriate process for pumpkin yogurt
topic Cucurbita
nutritional properties
preprocessing
pumpkin
yogurt
url https://doi.org/10.1002/fsn3.3580
work_keys_str_mv AT haticesıcramaz investigationoftheeffectsofdifferentprocessingmethodsontheselectednutritionalpropertiesofpumpkinanddeterminingtheappropriateprocessforpumpkinyogurt
AT ahmetayar investigationoftheeffectsofdifferentprocessingmethodsontheselectednutritionalpropertiesofpumpkinanddeterminingtheappropriateprocessforpumpkinyogurt