Journals / Gıda / 1993 / Cilt: 18 - Sayı: 2

Research on the Possibilities of Using Hydrolysed Whey Concentrate in Yoghurt Manufacture (Turkish with English Abstract)

Hidrolize Peyniraltı Suyu Konsantresinin Yoğurt Üretiminde Kullanım Olanaklarının Araştırılması

Journal
Gıda
Pages
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Publication Date
1993-04-01
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was concluded that, titratable acidity, lactic acid, tyrosine value increased and curd stability was weakened gradually (decreased viscosity, increased whey off) with increasing level of HWC.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, the effect of using hydrolysed whey concentrate (HWC) (30% TS; 50% lactose hydrolization rate) on some properties of set yoghurt was investigated.
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Key Findings & Data:HWC was added to yoghurt milk to give an increase in dry matter at the level of 0% (K), 1% (A), 3% (B), 5% (C).
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Conclusion & Impact:It was concluded that, titratable acidity, lactic acid, tyrosine value increased and curd stability was weakened gradually (decreased viscosity, increased whey off) with increasing level of HWC.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, the effect of using hydrolysed whey concentrate (HWC) (30% TS; 50% lactose hydrolization rate) on some properties of set yoghurt was investigated. HWC was added to yoghurt milk to give an increase in dry matter at the level of 0% (K), 1% (A), 3% (B), 5% (C). These mixtures were standardized to 15% total solids, by the addition of dried skim milk powder and then those milk were used for set yoghurt manufacture. Samples were examined for titratable acidity, lactic acid, acetaldehyde, tyrosine value, viscosity, wheying-off and organoleptic quality at the 1. and 14. days of storage. Incubation time, total solids, fat and ash content were also determined at the first day of storage. It was concluded that, titratable acidity, lactic acid, tyrosine value increased and curd stability was weakened gradually (decreased viscosity, increased whey off) with increasing level of HWC. In contrast to this an increase was observed in lactose and acetaldehyde content. During the storage, titratable acidity, lactic acid, curd stability of yoghurt samples increased while lactose, acetaldehyde content decreased and tyrosine value remained unchanged. No significant differences between control and yoghurt samples of A, B were determined with the respect to flavour and aroma, consistency, appearance, odour. But the highest flavour and aroma score was given to sample C. As a result of overall score, sample C was found to be the best.

Özet

Çalışmada, kurumadde içeriği %30, laktoz hidrolizasyon oranı %50 olan, hidrolize peyniraltı suyu konsantresinin (II Pas K), set yoğurtlarının bazı özellikleri üzerine etkisi araştırılmıştır. Bunun için, H Pas K yoğurt sütüne kurumaddede %0 (K), %1 (A), %3 (B), %5 (C) artış sağlayacak şekilde ilave edilmiş ve bu karışımların kurumadde içerikleri %15’e yasız süttozu ilavesiyle standardize edilmiştir. Üretilen set yoğurtların titrasyon asitliği, laktik asit, asetaldehit, tirozin değerleri, viskozite, serum ayrılması ve duyusal nitelikleri depolamanın 1. ve 14. günlerinde saptanmıştır. Ayrıca, inkübasyon süreleri, toplam kurumadde, yağ ve mineral madde içerikleri depolamanın sadece 1. gününde belirlenmiştir. Sonuçta, II Pas K katım oranındaki artış ile titrasyon asitliği, laktik asit, tirozin değerleri azalmış ve pıhtı stabilitesi zayıflamıştır (viskozite değerlerinde azalma, serum ayrılmasında artma). Buna karşın laktoz ve asetaldehit içeriklerinde artma gözlenmiştir. Depolamada, titrasyon asitliği laktik asit ve pıhtı stabilitesi artarken, laktoz ve asetaldehit içerikleri azalmıştır. Tat, kıvam, görünüş, koku bakımından kontrol (K) ile A, B örnekleri arasında önemli bir farklılığın bulunmadığı ortaya konulmuştur. Toplam puanlara göre en fazla beğeniye C örneği kazanmıştır.

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Cite This Article

ATAMER, M., AYDIN, G., SEZGİN, E. (1993). Research on the Possibilities of Using Hydrolysed Whey Concentrate in Yoghurt Manufacture (Turkish with English Abstract). Gıda, Cilt: 18 - Sayı: 2. https://ajindex.com/articles/40629

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