Evaluation of microwave pretreated waste dry fig for Biohydrogen production

Serpil Özmıhçı

Makale detayları

Evaluation of microwave pretreated waste dry fig for Biohydrogen production

Yazarlar:

Serpil Özmıhçı

Yayıncı:

Pamukkale University

Ana Başlıklar:

Çevre Mühendisliği (Diğer)

Dergi:

Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi Vol.29 Issue 7, pp.760-768

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001307477

pISSN:

2147-5881

Anahtar kelimeler:

Özet:

 In the study, the best conditions for aflatoxin removal and the highest dissolved sugar were determined by applying microwave pretreatment 250-800W to waste dried figs. Biohydrogen production performances of aflatoxin-free dried figs were evaluated by testing different substrate 11.8-118 gL and different organism concentrations 0.5-2.5 gL. The optimum microwave of the microwave pretreatment process, giving the highest dissolved sugar concentration 89.7 gL from 100 gL waste dried figs was 400 W and the treatment time was 10 minutes. Under these conditions, 46.2 hydrolysis of sugars and 77.8 aflatoxin removal were achieved. At the initial substrate concentration of 59 gL, the highest cumulative volume of hydrogen gas, hydrogen gas production yield, hydrogen gas production rate were found as 161.9 mL, 207.5 mL H2g total sugar, 1.75 mLhour, respectively. Although lactic acid was produced in high amounts from organic acids produced in experiments using different substrate concentrations, it has been observed that it is converted into butyric acid in some experiments. This resulted as an increase in biohydrogen gas production. In different organism amount experiments, it was observed that sugar was consumed in all experiments and hydrogen gas was produced successfully. Butyric acid was the main organic acid in the experimental media where the highest hydrogen gas production yield was produced in 1 gL as 124.28 mL H2g total sugar. The specific hydrogen gas production rate SHPR decreased with increasing organism concentrations. The highest SHPR was obtained with 0.5 gL organism concentration as 3.83 mL H2g biomass hour.

 In the study, the best conditions for aflatoxin removal and the highest dissolved sugar were determined by applying microwave pretreatment 250-800W to waste dried figs. Biohydrogen production performances of aflatoxin-free dried figs were evaluated by testing different substrate 11.8-118 gL and different organism concentrations 0.5-2.5 gL. The optimum microwave of the microwave pretreatment process, giving the highest dissolved sugar concentration 89.7 gL from 100 gL waste dried figs was 400 W and the treatment time was 10 minutes. Under these conditions, 46.2 hydrolysis of sugars and 77.8 aflatoxin removal were achieved. At the initial substrate concentration of 59 gL, the highest cumulative volume of hydrogen gas, hydrogen gas production yield, hydrogen gas production rate were found as 161.9 mL, 207.5 mL H2g total sugar, 1.75 mLhour, respectively. Although lactic acid was produced in high amounts from organic acids produced in experiments using different substrate concentrations, it has been observed that it is converted into butyric acid in some experiments. This resulted as an increase in biohydrogen gas production. In different organism amount experiments, it was observed that sugar was consumed in all experiments and hydrogen gas was produced successfully. Butyric acid was the main organic acid in the experimental media where the highest hydrogen gas production yield was produced in 1 gL as 124.28 mL H2g total sugar. The specific hydrogen gas production rate SHPR decreased with increasing organism concentrations. The highest SHPR was obtained with 0.5 gL organism concentration as 3.83 mL H2g biomass hour.

 In the study, the best conditions for aflatoxin removal and the highest dissolved sugar were determined by applying microwave pretreatment 250-800W to waste dried figs. Biohydrogen production performances of aflatoxin-free dried figs were evaluated by testing different substrate 11.8-118 gL and different organism concentrations 0.5-2.5 gL. The optimum microwave of the microwave pretreatment process, giving the highest dissolved sugar concentration 89.7 gL from 100 gL waste dried figs was 400 W and the treatment time was 10 minutes. Under these conditions, 46.2 hydrolysis of sugars and 77.8 aflatoxin removal were achieved. At the initial substrate concentration of 59 gL, the highest cumulative volume of hydrogen gas, hydrogen gas production yield, hydrogen gas production rate were found as 161.9 mL, 207.5 mL H2g total sugar, 1.75 mLhour, respectively. Although lactic acid was produced in high amounts from organic acids produced in experiments using different substrate concentrations, it has been observed that it is converted into butyric acid in some experiments. This resulted as an increase in biohydrogen gas production. In different organism amount experiments, it was observed that sugar was consumed in all experiments and hydrogen gas was produced successfully. Butyric acid was the main organic acid in the experimental media where the highest hydrogen gas production yield was produced in 1 gL as 124.28 mL H2g total sugar. The specific hydrogen gas production rate SHPR decreased with increasing organism concentrations. The highest SHPR was obtained with 0.5 gL organism concentration as 3.83 mL H2g biomass hour.

 Çalışmada; atık kuru incirde mikrodalga ön işlemi 250-800W uygulanarak aflotoksin giderimi ve en yüksek çözünmüş şeker eldesi için en iyi koşulları saptanmıştır. Aflatoksini giderilmiş atık kuru incirlerin biyohidrojen üretim performansları farklı substrat 11.8-118 gL ve farklı organizma konsantrasyonları 0.5-2.5 gL denenerek test edilmiştir. Mikrodalga işlemi sonucunda 100 gL atık kuru incirden en yüksek çözünmüş şeker konsantrasyonunu 89.7 gL veren dalga boyu 400 W ve muamele süresi 10 dk. olarak bulunmuştur. Bu koşullarda 46.2 şeker hidrolizlenmesi ve 77.8 aflatoksin giderimi sağlanmıştır. En yüksek kümülatif hidrojen gazı hacmi, hidrojen gazı üretim verimi, hidrojen gazı üretim hızı; 59 gL başlangıç substrat konsantrasyonunda sırasıyla, 161.9 mL, 207.5 mL H2g toplam şeker, 1.75 mLsa. olarak bulunmuştur. Farklı substrat konsantrasyonlarının kullanıldığı deneylerde üretilen organik asitlerden, laktik asidin yüksek miktarlarda üretiliyor olmasına rağmen, bazı deneylerde bütrik aside dönüştüğü gözlemlenmiştir. Bu da biyohidrojen gazı üretimlerinde artış sağlamıştır. Organizma miktarı değişim deneylerinde şekerin tüm deney ortamlarında tüketildiği gözlenmiş ve başarılı bir şekilde hidrojen gazı üretimi gerçekleşmiştir. Yoğunluklu olarak bütrik asit üretilen deney ortamlarında en yüksek hidrojen gazı üretim verimi 1 gL organizma içeren deney ortamında 124.28 mL H2g toplam şeker olarak elde edilmiştir. Organizma konsantrasyonu arttıkça spesifik hidrojen üretim hızında SHÜH düşüş gözlenmiştir. En yüksek SHÜH, 0.5 gL organizma içeren fermentasyon ortamında 3.83 mL H2g biyokütle saat olarak bulunmuştur.

Makale detayları

Evaluation of microwave pretreated waste dry fig for Biohydrogen production

Yazarlar:

Serpil Özmıhçı

Yayıncı:

Pamukkale University

Ana Başlıklar:

Çevre Mühendisliği (Diğer)

Dergi:

Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi Vol.29 Issue 7, pp.760-768

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001307477

pISSN:

2147-5881

Aflatoxin

Waste dry fig

Biohydrogen production

Substrate concentration

Organism concentrationAflatoksin

Atık kuru incir

Biyohidrojen üretimi

Substrat konsantrasyonu

Organizma konsantrasyonu

Sayı

Makale detayları

Yazarlar: Serpil Özmıhçı

Yayıncı: Pamukkale University

Ana Başlıklar: Çevre Mühendisliği (Diğer)

Dergi: Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi Vol.29 Issue 7, pp.760-768

Belge Tipi: Makale

Yayın Tarihi: 12/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001307477

pISSN: 2147-5881

Sayı

Yazarlar:

Serpil Özmıhçı

Yayıncı:

Pamukkale University

Ana Başlıklar:

Çevre Mühendisliği (Diğer)

Dergi:

Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi Vol.29 Issue 7, pp.760-768

Belge Tipi:

Makale

Yayın Tarihi:

12/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001307477

pISSN:

2147-5881