Here's a simple python script to extract and format the emails:
Script
import re
input_text = "hj sdsd <jkkl.kll.o.v@blbla.com>; jsdsl lassd <jskdsd.uioo@blbla.com>;"
emails = re.findall(r'<([^>]+)>', input_text)
output = ','.join(f'"{email}"' for email in emails)
print(output)
Output
"jkkl.kll.o.v@blbla.com","jskdsd.uioo@blbla.com"
This script uses a regular expression to find all email addresses enclosed in angle brackets < > and formats them as requested.